7687664604 has 54 divisors (see below), whose sum is σ = 19855172064. Its totient is φ = 2508006480.

The previous prime is 7687664599. The next prime is 7687664617. The reversal of 7687664604 is 4064667867.

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 17 ways as a sum of consecutive naturals, for example, 31189 + ... + 127859.

Almost surely, 2^7687664604 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 7687664604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9927586032).

7687664604 is an abundant number, since it is smaller than the sum of its proper divisors (12167507460).

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

7687664604 is a wasteful number, since it uses less digits than its factorization.

7687664604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96775 (or 96723 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The square root of 7687664604 is about 87679.3282592881. The cubic root of 7687664604 is about 1973.6257794018.

The spelling of 7687664604 in words is "seven billion, six hundred eighty-seven million, six hundred sixty-four thousand, six hundred four".