86544018894 has 16 divisors (see below), whose sum is σ = 173106581760. Its totient is φ = 28844915640.

The previous prime is 86544018893. The next prime is 86544018937. The reversal of 86544018894 is 49881044568.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86544018893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711624 + ... + 824315.

It is an arithmetic number, because the mean of its divisors is an integer number (10819161360).

Almost surely, 2^86544018894 is an apocalyptic number.

86544018894 is an abundant number, since it is smaller than the sum of its proper divisors (86562562866).

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

86544018894 is a wasteful number, since it uses less digits than its factorization.

86544018894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545335.

The product of its (nonzero) digits is 8847360, while the sum is 57.

The spelling of 86544018894 in words is "eighty-six billion, five hundred forty-four million, eighteen thousand, eight hundred ninety-four".