31841506864 has 20 divisors (see below), whose sum is σ = 61695872640. Its totient is φ = 15919991360.

The previous prime is 31841506859. The next prime is 31841506883. The reversal of 31841506864 is 46860514813.

It is a super-2 number, since 2×31841506864² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 462897 + ... + 527215.

It is an arithmetic number, because the mean of its divisors is an integer number (3084793632).

Almost surely, 2^31841506864 is an apocalyptic number.

It is an amenable number.

31841506864 is a deficient number, since it is larger than the sum of its proper divisors (29854365776).

31841506864 is a wasteful number, since it uses less digits than its factorization.

31841506864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95268 (or 95262 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 31841506864 in words is "thirty-one billion, eight hundred forty-one million, five hundred six thousand, eight hundred sixty-four".