87807396736 has 16 divisors (see below), whose sum is σ = 174928798440. Its totient is φ = 43903698304.

The previous prime is 87807396731. The next prime is 87807396737. The reversal of 87807396736 is 63769370878.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87807396731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342997516 + ... + 342997771.

Almost surely, 2^87807396736 is an apocalyptic number.

It is an amenable number.

87807396736 is a deficient number, since it is larger than the sum of its proper divisors (87121401704).

87807396736 is an equidigital number, since it uses as much as digits as its factorization.

87807396736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685995301 (or 685995289 counting only the distinct ones).

The product of its (nonzero) digits is 64012032, while the sum is 64.

The spelling of 87807396736 in words is "eighty-seven billion, eight hundred seven million, three hundred ninety-six thousand, seven hundred thirty-six".