396587232864 has 576 divisors, whose sum is σ = 1314039283200. Its totient is φ = 115822586880.

The previous prime is 396587232851. The next prime is 396587232901. The reversal of 396587232864 is 468232785693.

It is a happy number.

396587232864 is a `hidden beast` number, since 3 + 9 + 6 + 587 + 23 + 28 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 362842302 + ... + 362843394.

It is an arithmetic number, because the mean of its divisors is an integer number (2281318200).

Almost surely, 2^396587232864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396587232864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657019641600).

396587232864 is an abundant number, since it is smaller than the sum of its proper divisors (917452050336).

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

396587232864 is a wasteful number, since it uses less digits than its factorization.

396587232864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1171 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 63.

The spelling of 396587232864 in words is "three hundred ninety-six billion, five hundred eighty-seven million, two hundred thirty-two thousand, eight hundred sixty-four".