31475345804 has 18 divisors (see below), whose sum is σ = 64074811500. Its totient is φ = 13489433832.

The previous prime is 31475345789. The next prime is 31475345807. The reversal of 31475345804 is 40854357413.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31475345807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80294054 + ... + 80294445.

It is an arithmetic number, because the mean of its divisors is an integer number (3559711750).

Almost surely, 2^31475345804 is an apocalyptic number.

It is an amenable number.

31475345804 is an abundant number, since it is smaller than the sum of its proper divisors (32599465696).

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

31475345804 is a wasteful number, since it uses less digits than its factorization.

31475345804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160588517 (or 160588508 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 31475345804 in words is "thirty-one billion, four hundred seventy-five million, three hundred forty-five thousand, eight hundred four".