31373366464 has 56 divisors (see below), whose sum is σ = 68087888208. Its totient is φ = 14224573440.

The previous prime is 31373366417. The next prime is 31373366503. The reversal of 31373366464 is 46466337313.

It is a happy 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, 223362 + ... + 335614.

Almost surely, 2^31373366464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31373366464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34043944104).

31373366464 is an abundant number, since it is smaller than the sum of its proper divisors (36714521744).

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

31373366464 is a wasteful number, since it uses less digits than its factorization.

31373366464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112673 (or 112663 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 46.

The spelling of 31373366464 in words is "thirty-one billion, three hundred seventy-three million, three hundred sixty-six thousand, four hundred sixty-four".