47790252840 has 256 divisors, whose sum is σ = 163636070400. Its totient is φ = 11052518400.

The previous prime is 47790252823. The next prime is 47790252869. The reversal of 47790252840 is 4825209774.

It is a super-2 number, since 2×47790252840² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47790252840.

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, 12779691 + ... + 12783429.

It is an arithmetic number, because the mean of its divisors is an integer number (639203400).

Almost surely, 2^47790252840 is an apocalyptic number.

47790252840 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 47790252840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81818035200).

47790252840 is an abundant number, since it is smaller than the sum of its proper divisors (115845817560).

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

47790252840 is a wasteful number, since it uses less digits than its factorization.

47790252840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208 (or 4204 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 47790252840 in words is "forty-seven billion, seven hundred ninety million, two hundred fifty-two thousand, eight hundred forty".