87645668970 has 16 divisors (see below), whose sum is σ = 210349605600. Its totient is φ = 23372178384.

The previous prime is 87645668969. The next prime is 87645669017. The reversal of 87645668970 is 7986654678.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460761120 + ... + 1460761179.

It is an arithmetic number, because the mean of its divisors is an integer number (13146850350).

Almost surely, 2^87645668970 is an apocalyptic number.

87645668970 is an abundant number, since it is smaller than the sum of its proper divisors (122703936630).

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

87645668970 is a wasteful number, since it uses less digits than its factorization.

87645668970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921522309.

The product of its (nonzero) digits is 121927680, while the sum is 66.

The spelling of 87645668970 in words is "eighty-seven billion, six hundred forty-five million, six hundred sixty-eight thousand, nine hundred seventy".