31238327472 has 40 divisors (see below), whose sum is σ = 88035288000. Its totient is φ = 9466159680.

The previous prime is 31238327437. The next prime is 31238327479. The reversal of 31238327472 is 27472383213.

It is not an unprimeable number, because it can be changed into a prime (31238327479) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29581222 + ... + 29582277.

It is an arithmetic number, because the mean of its divisors is an integer number (2200882200).

Almost surely, 2^31238327472 is an apocalyptic number.

It is an amenable number.

31238327472 is an abundant number, since it is smaller than the sum of its proper divisors (56796960528).

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

31238327472 is a wasteful number, since it uses less digits than its factorization.

31238327472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59163521 (or 59163515 counting only the distinct ones).

The product of its digits is 338688, while the sum is 42.

The spelling of 31238327472 in words is "thirty-one billion, two hundred thirty-eight million, three hundred twenty-seven thousand, four hundred seventy-two".