31384074672 has 100 divisors (see below), whose sum is σ = 91984722720. Its totient is φ = 10328902272.

The previous prime is 31384074661. The next prime is 31384074679. The reversal of 31384074672 is 27647048313.

31384074672 is a `hidden beast` number, since 3 + 138 + 407 + 46 + 72 = 666.

It is not an unprimeable number, because it can be changed into a prime (31384074679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50883 + ... + 255650.

Almost surely, 2^31384074672 is an apocalyptic number.

It is an amenable number.

31384074672 is an abundant number, since it is smaller than the sum of its proper divisors (60600648048).

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

31384074672 is a wasteful number, since it uses less digits than its factorization.

31384074672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306632 (or 306617 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 31384074672 in words is "thirty-one billion, three hundred eighty-four million, seventy-four thousand, six hundred seventy-two".