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48866128875520 = 21251131149151311
BaseRepresentation
bin10110001110001100010000…
…10000001101000000000000
320102000120000112121002120021
423013012020100031000000
522401110312443004040
6251532442324023224
713202314141036405
oct1307061020150000
9212016015532507
1048866128875520
11146300108a3a40
1255926bb831b14
132136096574c18
14c0d1c192c2ac
1559b1c07ba24a
hex2c718840d000

48866128875520 has 832 divisors, whose sum is σ = 134248314470400. Its totient is φ = 16913203200000.

The previous prime is 48866128875491. The next prime is 48866128875593. The reversal of 48866128875520 is 2557882166884.

It is a self number, because there is not a number n which added to its sum of digits gives 48866128875520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 157125816165 + ... + 157125816475.

It is an arithmetic number, because the mean of its divisors is an integer number (161356147200).

Almost surely, 248866128875520 is an apocalyptic number.

48866128875520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48866128875520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67124157235200).

48866128875520 is an abundant number, since it is smaller than the sum of its proper divisors (85382185594880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48866128875520 is a wasteful number, since it uses less digits than its factorization.

48866128875520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 412876800, while the sum is 70.

The spelling of 48866128875520 in words is "forty-eight trillion, eight hundred sixty-six billion, one hundred twenty-eight million, eight hundred seventy-five thousand, five hundred twenty".