31963081740 has 48 divisors (see below), whose sum is σ = 94206981120. Its totient is φ = 8074883520.

The previous prime is 31963081727. The next prime is 31963081771. The reversal of 31963081740 is 4718036913.

It is a junction number, because it is equal to n+sod(n) for n = 31963081692 and 31963081701.

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, 14017756 + ... + 14020035.

It is an arithmetic number, because the mean of its divisors is an integer number (1962645440).

Almost surely, 2^31963081740 is an apocalyptic number.

31963081740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31963081740 is an abundant number, since it is smaller than the sum of its proper divisors (62243899380).

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

31963081740 is a wasteful number, since it uses less digits than its factorization.

31963081740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28037822 (or 28037820 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 31963081740 in words is "thirty-one billion, nine hundred sixty-three million, eighty-one thousand, seven hundred forty".