86890370664 has 32 divisors (see below), whose sum is σ = 217323865440. Its totient is φ = 28950398400.

The previous prime is 86890370663. The next prime is 86890370701. The reversal of 86890370664 is 46607309868.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (86890370663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 761742 + ... + 868349.

It is an arithmetic number, because the mean of its divisors is an integer number (6791370795).

Almost surely, 2^86890370664 is an apocalyptic number.

It is an amenable number.

86890370664 is an abundant number, since it is smaller than the sum of its proper divisors (130433494776).

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

86890370664 is a wasteful number, since it uses less digits than its factorization.

86890370664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632321 (or 1632317 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 86890370664 in words is "eighty-six billion, eight hundred ninety million, three hundred seventy thousand, six hundred sixty-four".