31475330394 has 16 divisors (see below), whose sum is σ = 62952712032. Its totient is φ = 10491434928.

The previous prime is 31475330363. The next prime is 31475330413. The reversal of 31475330394 is 49303357413.

It is a super-2 number, since 2×31475330394² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175137 + ... + 305979.

It is an arithmetic number, because the mean of its divisors is an integer number (3934544502).

Almost surely, 2^31475330394 is an apocalyptic number.

31475330394 is an abundant number, since it is smaller than the sum of its proper divisors (31477381638).

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

31475330394 is a wasteful number, since it uses less digits than its factorization.

31475330394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170941.

The product of its (nonzero) digits is 408240, while the sum is 42.

The spelling of 31475330394 in words is "thirty-one billion, four hundred seventy-five million, three hundred thirty thousand, three hundred ninety-four".