31767684052 has 24 divisors (see below), whose sum is σ = 59929067016. Its totient is φ = 14647509888.

The previous prime is 31767684041. The next prime is 31767684059. The reversal of 31767684052 is 25048676713.

It can be written as a sum of positive squares in 4 ways, for example, as 4127291536 + 27640392516 = 64244^2 + 166254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31767683987 and 31767684005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31767684059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248863 + ... + 354214.

It is an arithmetic number, because the mean of its divisors is an integer number (2497044459).

Almost surely, 2^31767684052 is an apocalyptic number.

It is an amenable number.

31767684052 is a deficient number, since it is larger than the sum of its proper divisors (28161382964).

31767684052 is a wasteful number, since it uses less digits than its factorization.

31767684052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604107 (or 604105 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

It can be divided in two parts, 3176768 and 4052, that multiplied together give a square (12872263936 = 113456²).

The spelling of 31767684052 in words is "thirty-one billion, seven hundred sixty-seven million, six hundred eighty-four thousand, fifty-two".