7993864164 has 96 divisors (see below), whose sum is σ = 21972271104. Its totient is φ = 2230024320.

The previous prime is 7993864141. The next prime is 7993864183. The reversal of 7993864164 is 4614683997.

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, 651147 + ... + 663309.

It is an arithmetic number, because the mean of its divisors is an integer number (228877824).

Almost surely, 2^7993864164 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 7993864164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10986135552).

7993864164 is an abundant number, since it is smaller than the sum of its proper divisors (13978406940).

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

7993864164 is a wasteful number, since it uses less digits than its factorization.

7993864164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12577 (or 12575 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 57.

The square root of 7993864164 is about 89408.4121545618. The cubic root of 7993864164 is about 1999.4885495537.

The spelling of 7993864164 in words is "seven billion, nine hundred ninety-three million, eight hundred sixty-four thousand, one hundred sixty-four".