87292872865 has 16 divisors (see below), whose sum is σ = 114354377280. Its totient is φ = 63441241920.

The previous prime is 87292872839. The next prime is 87292872871. The reversal of 87292872865 is 56827829278.

It is not a de Polignac number, because 87292872865 - 2⁹ = 87292872353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87292872797 and 87292872806.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476739 + ... + 633928.

It is an arithmetic number, because the mean of its divisors is an integer number (7147148580).

Almost surely, 2^87292872865 is an apocalyptic number.

It is an amenable number.

87292872865 is a deficient number, since it is larger than the sum of its proper divisors (27061504415).

87292872865 is a wasteful number, since it uses less digits than its factorization.

87292872865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112112.

The product of its digits is 54190080, while the sum is 64.

The spelling of 87292872865 in words is "eighty-seven billion, two hundred ninety-two million, eight hundred seventy-two thousand, eight hundred sixty-five".