40886399178864 has 120 divisors (see below), whose sum is σ = 124332910041600. Its totient is φ = 12494994629760.

The previous prime is 40886399178847. The next prime is 40886399178941. The reversal of 40886399178864 is 46887199368804.

40886399178864 is a `hidden beast` number, since 4 + 0 + 8 + 86 + 399 + 1 + 78 + 86 + 4 = 666.

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240945174 + ... + 241114805.

It is an arithmetic number, because the mean of its divisors is an integer number (1036107583680).

Almost surely, 2^{40886399178864} is an apocalyptic number.

It is an amenable number.

40886399178864 is an abundant number, since it is smaller than the sum of its proper divisors (83446510862736).

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

40886399178864 is a wasteful number, since it uses less digits than its factorization.

40886399178864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482060043 (or 482060034 counting only the distinct ones).

The product of its (nonzero) digits is 4013162496, while the sum is 81.

The spelling of 40886399178864 in words is "forty trillion, eight hundred eighty-six billion, three hundred ninety-nine million, one hundred seventy-eight thousand, eight hundred sixty-four".