31894959696 has 20 divisors (see below), whose sum is σ = 82395312672. Its totient is φ = 10631653216.

The previous prime is 31894959659. The next prime is 31894959697. The reversal of 31894959696 is 69695949813.

It is a self number, because there is not a number n which added to its sum of digits gives 31894959696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31894959697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332239116 + ... + 332239211.

Almost surely, 2^31894959696 is an apocalyptic number.

It is an amenable number.

31894959696 is an abundant number, since it is smaller than the sum of its proper divisors (50500352976).

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

31894959696 is a wasteful number, since it uses less digits than its factorization.

31894959696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664478338 (or 664478332 counting only the distinct ones).

The product of its digits is 113374080, while the sum is 69.

The spelling of 31894959696 in words is "thirty-one billion, eight hundred ninety-four million, nine hundred fifty-nine thousand, six hundred ninety-six".