31474476912 has 40 divisors (see below), whose sum is σ = 82222661520. Its totient is φ = 10373608960.

The previous prime is 31474476911. The next prime is 31474476959. The reversal of 31474476912 is 21967447413.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31474476911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3679539 + ... + 3688082.

It is an arithmetic number, because the mean of its divisors is an integer number (2055566538).

Almost surely, 2^31474476912 is an apocalyptic number.

It is an amenable number.

31474476912 is an abundant number, since it is smaller than the sum of its proper divisors (50748184608).

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

31474476912 is a wasteful number, since it uses less digits than its factorization.

31474476912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7367721 (or 7367715 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The spelling of 31474476912 in words is "thirty-one billion, four hundred seventy-four million, four hundred seventy-six thousand, nine hundred twelve".