31945325394 has 8 divisors (see below), whose sum is σ = 63890650800. Its totient is φ = 10648441796.

The previous prime is 31945325371. The next prime is 31945325407. The reversal of 31945325394 is 49352354913.

It is a sphenic number, since it is the product of 3 distinct primes.

31945325394 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662110444 + ... + 2662110455.

It is an arithmetic number, because the mean of its divisors is an integer number (7986331350).

Almost surely, 2^31945325394 is an apocalyptic number.

31945325394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31945325394 is a wasteful number, since it uses less digits than its factorization.

31945325394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324220904.

The product of its digits is 1749600, while the sum is 48.

The spelling of 31945325394 in words is "thirty-one billion, nine hundred forty-five million, three hundred twenty-five thousand, three hundred ninety-four".