87072831309696 has 32 divisors (see below), whose sum is σ = 231287208167400. Its totient is φ = 29024277103104.

The previous prime is 87072831309689. The next prime is 87072831309743. The reversal of 87072831309696 is 69690313827078.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×87072831309696² (a number of 29 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 87072831309696.

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, 113376082051 + ... + 113376082818.

Almost surely, 2^{87072831309696} is an apocalyptic number.

It is an amenable number.

87072831309696 is an abundant number, since it is smaller than the sum of its proper divisors (144214376857704).

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

87072831309696 is a wasteful number, since it uses less digits than its factorization.

87072831309696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226752164886 (or 226752164874 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 69.

The spelling of 87072831309696 in words is "eighty-seven trillion, seventy-two billion, eight hundred thirty-one million, three hundred nine thousand, six hundred ninety-six".