86887428644 has 12 divisors (see below), whose sum is σ = 152255472768. Its totient is φ = 43385865000.

The previous prime is 86887428637. The next prime is 86887428703. The reversal of 86887428644 is 44682478868.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14458952 + ... + 14464959.

It is an arithmetic number, because the mean of its divisors is an integer number (12687956064).

Almost surely, 2^86887428644 is an apocalyptic number.

It is an amenable number.

86887428644 is a deficient number, since it is larger than the sum of its proper divisors (65368044124).

86887428644 is a wasteful number, since it uses less digits than its factorization.

86887428644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28924666 (or 28924664 counting only the distinct ones).

The product of its digits is 132120576, while the sum is 65.

The spelling of 86887428644 in words is "eighty-six billion, eight hundred eighty-seven million, four hundred twenty-eight thousand, six hundred forty-four".