31593066672 has 20 divisors (see below), whose sum is σ = 81615422360. Its totient is φ = 10531022208.

The previous prime is 31593066649. The next prime is 31593066691. The reversal of 31593066672 is 27666039513.

It is a super-3 number, since 3×31593066672³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 658188889 = 31593066672 / (3 + 1 + 5 + 9 + 3 + 0 + 6 + 6 + 6 + 7 + 2).

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, 329094397 + ... + 329094492.

It is an arithmetic number, because the mean of its divisors is an integer number (4080771118).

Almost surely, 2^31593066672 is an apocalyptic number.

It is an amenable number.

31593066672 is an abundant number, since it is smaller than the sum of its proper divisors (50022355688).

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

31593066672 is a wasteful number, since it uses less digits than its factorization.

31593066672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658188900 (or 658188894 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 48.

The spelling of 31593066672 in words is "thirty-one billion, five hundred ninety-three million, sixty-six thousand, six hundred seventy-two".