9372438375664 has 160 divisors (see below), whose sum is σ = 22677846274944. Its totient is φ = 3653711953920.

The previous prime is 9372438375653. The next prime is 9372438375673. The reversal of 9372438375664 is 4665738342739.

It is a super-2 number, since 2×9372438375664² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9372438375664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28298704 + ... + 28627984.

Almost surely, 2^{9372438375664} 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 9372438375664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11338923137472).

9372438375664 is an abundant number, since it is smaller than the sum of its proper divisors (13305407899280).

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

9372438375664 is a wasteful number, since it uses less digits than its factorization.

9372438375664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329595 (or 329589 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 67.

The spelling of 9372438375664 in words is "nine trillion, three hundred seventy-two billion, four hundred thirty-eight million, three hundred seventy-five thousand, six hundred sixty-four".