31722819052 has 6 divisors (see below), whose sum is σ = 55514933348. Its totient is φ = 15861409524.

The previous prime is 31722819001. The next prime is 31722819053. The reversal of 31722819052 is 25091822713.

It is a junction number, because it is equal to n+sod(n) for n = 31722818996 and 31722819014.

It is not an unprimeable number, because it can be changed into a prime (31722819053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3965352378 + ... + 3965352385.

Almost surely, 2^31722819052 is an apocalyptic number.

It is an amenable number.

31722819052 is a deficient number, since it is larger than the sum of its proper divisors (23792114296).

31722819052 is a wasteful number, since it uses less digits than its factorization.

31722819052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930704767 (or 7930704765 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 31722819052 in words is "thirty-one billion, seven hundred twenty-two million, eight hundred nineteen thousand, fifty-two".