48856861520 has 20 divisors (see below), whose sum is σ = 113592203220. Its totient is φ = 19542744576.

The previous prime is 48856861507. The next prime is 48856861523. The reversal of 48856861520 is 2516865884.

It can be written as a sum of positive squares in 2 ways, for example, as 29321767696 + 19535093824 = 171236^2 + 139768^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48856861523) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 305355305 + ... + 305355464.

It is an arithmetic number, because the mean of its divisors is an integer number (5679610161).

Almost surely, 2^48856861520 is an apocalyptic number.

48856861520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48856861520 is an abundant number, since it is smaller than the sum of its proper divisors (64735341700).

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

48856861520 is a wasteful number, since it uses less digits than its factorization.

48856861520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610710782 (or 610710776 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 53.

The spelling of 48856861520 in words is "forty-eight billion, eight hundred fifty-six million, eight hundred sixty-one thousand, five hundred twenty".