31950776040 has 64 divisors (see below), whose sum is σ = 95868178560. Its totient is φ = 8518798080.

The previous prime is 31950776009. The next prime is 31950776051. The reversal of 31950776040 is 4067705913.

It is a junction number, because it is equal to n+sod(n) for n = 31950775983 and 31950776001.

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, 850045 + ... + 886835.

It is an arithmetic number, because the mean of its divisors is an integer number (1497940290).

Almost surely, 2^31950776040 is an apocalyptic number.

31950776040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31950776040 is an abundant number, since it is smaller than the sum of its proper divisors (63917402520).

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

31950776040 is a wasteful number, since it uses less digits than its factorization.

31950776040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44042 (or 44038 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The spelling of 31950776040 in words is "thirty-one billion, nine hundred fifty million, seven hundred seventy-six thousand, forty".