31772016522268 has 12 divisors (see below), whose sum is σ = 60655667906232. Its totient is φ = 14441825691920.

The previous prime is 31772016522229. The next prime is 31772016522283. The reversal of 31772016522268 is 86222561027713.

It is a super-2 number, since 2×31772016522268² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361045642255 + ... + 361045642342.

It is an arithmetic number, because the mean of its divisors is an integer number (5054638992186).

Almost surely, 2^{31772016522268} is an apocalyptic number.

It is an amenable number.

31772016522268 is a deficient number, since it is larger than the sum of its proper divisors (28883651383964).

31772016522268 is a wasteful number, since it uses less digits than its factorization.

31772016522268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722091284612 (or 722091284610 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 52.

Subtracting 31772016522268 from its reverse (86222561027713), we obtain a palindrome (54450544505445).

The spelling of 31772016522268 in words is "thirty-one trillion, seven hundred seventy-two billion, sixteen million, five hundred twenty-two thousand, two hundred sixty-eight".