31380775004 has 6 divisors (see below), whose sum is σ = 54916356264. Its totient is φ = 15690387500.

The previous prime is 31380774991. The next prime is 31380775051. The reversal of 31380775004 is 40057708313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3922596872 + ... + 3922596879.

It is an arithmetic number, because the mean of its divisors is an integer number (9152726044).

Almost surely, 2^31380775004 is an apocalyptic number.

It is an amenable number.

31380775004 is a deficient number, since it is larger than the sum of its proper divisors (23535581260).

31380775004 is a wasteful number, since it uses less digits than its factorization.

31380775004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7845193755 (or 7845193753 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 31380775004 in words is "thirty-one billion, three hundred eighty million, seven hundred seventy-five thousand, four".