87124856736 has 24 divisors (see below), whose sum is σ = 228702749184. Its totient is φ = 29041618880.

The previous prime is 87124856723. The next prime is 87124856747. The reversal of 87124856736 is 63765842178.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×87124856736² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453775200 + ... + 453775391.

It is an arithmetic number, because the mean of its divisors is an integer number (9529281216).

Almost surely, 2^87124856736 is an apocalyptic number.

It is an amenable number.

87124856736 is an abundant number, since it is smaller than the sum of its proper divisors (141577892448).

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

87124856736 is a wasteful number, since it uses less digits than its factorization.

87124856736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907550604 (or 907550596 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 87124856736 in words is "eighty-seven billion, one hundred twenty-four million, eight hundred fifty-six thousand, seven hundred thirty-six".