31982961960 has 48 divisors (see below), whose sum is σ = 103944627540. Its totient is φ = 8528789760.

The previous prime is 31982961863. The next prime is 31982961971. The reversal of 31982961960 is 6916928913.

31982961960 is a `hidden beast` number, since 3 + 19 + 8 + 2 + 9 + 619 + 6 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31770210564 + 212751396 = 178242^2 + 14586^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31982961897 and 31982961906.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44420421 + ... + 44421140.

Almost surely, 2^31982961960 is an apocalyptic number.

31982961960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31982961960 is an abundant number, since it is smaller than the sum of its proper divisors (71961665580).

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

31982961960 is a wasteful number, since it uses less digits than its factorization.

31982961960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88841578 (or 88841571 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 31982961960 in words is "thirty-one billion, nine hundred eighty-two million, nine hundred sixty-one thousand, nine hundred sixty".