31427084104 has 32 divisors (see below), whose sum is σ = 63469264320. Its totient is φ = 14502355776.

The previous prime is 31427084093. The next prime is 31427084107. The reversal of 31427084104 is 40148072413.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31427084104.

It is not an unprimeable number, because it can be changed into a prime (31427084107) 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, 687877 + ... + 732139.

It is an arithmetic number, because the mean of its divisors is an integer number (1983414510).

Almost surely, 2^31427084104 is an apocalyptic number.

It is an amenable number.

31427084104 is an abundant number, since it is smaller than the sum of its proper divisors (32042180216).

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

31427084104 is a wasteful number, since it uses less digits than its factorization.

31427084104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51109 (or 51105 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 31427084104 in words is "thirty-one billion, four hundred twenty-seven million, eighty-four thousand, one hundred four".