31982961948 has 24 divisors (see below), whose sum is σ = 85287898752. Its totient is φ = 9137989104.

The previous prime is 31982961863. The next prime is 31982961971. The reversal of 31982961948 is 84916928913.

It is a junction number, because it is equal to n+sod(n) for n = 31982961891 and 31982961900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190374690 + ... + 190374857.

It is an arithmetic number, because the mean of its divisors is an integer number (3553662448).

Almost surely, 2^31982961948 is an apocalyptic number.

It is an amenable number.

31982961948 is an abundant number, since it is smaller than the sum of its proper divisors (53304936804).

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

31982961948 is a wasteful number, since it uses less digits than its factorization.

31982961948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380749561 (or 380749559 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 60.

The spelling of 31982961948 in words is "thirty-one billion, nine hundred eighty-two million, nine hundred sixty-one thousand, nine hundred forty-eight".