31708631352 has 16 divisors (see below), whose sum is σ = 79271578440. Its totient is φ = 10569543776.

The previous prime is 31708631323. The next prime is 31708631359. The reversal of 31708631352 is 25313680713.

It is a self number, because there is not a number n which added to its sum of digits gives 31708631352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31708631359) by changing a digit.

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, 660596463 + ... + 660596510.

Almost surely, 2^31708631352 is an apocalyptic number.

It is an amenable number.

31708631352 is an abundant number, since it is smaller than the sum of its proper divisors (47562947088).

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

31708631352 is a wasteful number, since it uses less digits than its factorization.

31708631352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321192982 (or 1321192978 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 31708631352 in words is "thirty-one billion, seven hundred eight million, six hundred thirty-one thousand, three hundred fifty-two".