31745315168 has 48 divisors (see below), whose sum is σ = 71443925280. Its totient is φ = 13601903616.

The previous prime is 31745315153. The next prime is 31745315201. The reversal of 31745315168 is 86151354713.

It is a happy number.

It is a congruent number.

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, 1090628 + ... + 1119356.

It is an arithmetic number, because the mean of its divisors is an integer number (1488415110).

Almost surely, 2^31745315168 is an apocalyptic number.

It is an amenable number.

31745315168 is an abundant number, since it is smaller than the sum of its proper divisors (39698610112).

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

31745315168 is a wasteful number, since it uses less digits than its factorization.

31745315168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33679 (or 33671 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The spelling of 31745315168 in words is "thirty-one billion, seven hundred forty-five million, three hundred fifteen thousand, one hundred sixty-eight".