31964941980 has 48 divisors (see below), whose sum is σ = 99446487840. Its totient is φ = 8523984384.

The previous prime is 31964941979. The next prime is 31964941997. The reversal of 31964941980 is 8914946913.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 15 ways as a sum of consecutive naturals, for example, 29596629 + ... + 29597708.

It is an arithmetic number, because the mean of its divisors is an integer number (2071801830).

Almost surely, 2^31964941980 is an apocalyptic number.

31964941980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31964941980 is an abundant number, since it is smaller than the sum of its proper divisors (67481545860).

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

31964941980 is a wasteful number, since it uses less digits than its factorization.

31964941980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59194355 (or 59194347 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 31964941980 in words is "thirty-one billion, nine hundred sixty-four million, nine hundred forty-one thousand, nine hundred eighty".