87309492452864 has 40 divisors (see below), whose sum is σ = 190307409343128. Its totient is φ = 39686132930560.

The previous prime is 87309492452801. The next prime is 87309492452873. The reversal of 87309492452864 is 46825429490378.

It is a congruent number.

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, 7751192207 + ... + 7751203470.

Almost surely, 2^{87309492452864} is an apocalyptic number.

It is an amenable number.

87309492452864 is an abundant number, since it is smaller than the sum of its proper divisors (102997916890264).

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

87309492452864 is a wasteful number, since it uses less digits than its factorization.

87309492452864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15502395706 (or 15502395690 counting only the distinct ones).

The product of its (nonzero) digits is 836075520, while the sum is 71.

The spelling of 87309492452864 in words is "eighty-seven trillion, three hundred nine billion, four hundred ninety-two million, four hundred fifty-two thousand, eight hundred sixty-four".