7930742688 has 108 divisors (see below), whose sum is σ = 24789824514. Its totient is φ = 2403244800.

The previous prime is 7930742593. The next prime is 7930742693. The reversal of 7930742688 is 8862470397.

7930742688 is a `hidden beast` number, since 79 + 307 + 4 + 268 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6044751504 + 1885991184 = 77748^2 + 43428^2 .

It is a zygodrome in base 11.

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, 78943 + ... + 148638.

Almost surely, 2^7930742688 is an apocalyptic number.

It is an amenable number.

7930742688 is an abundant number, since it is smaller than the sum of its proper divisors (16859081826).

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

7930742688 is a wasteful number, since it uses less digits than its factorization.

7930742688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227619 (or 227597 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 7930742688 is about 89054.7173820680. The cubic root of 7930742688 is about 1994.2118219911.

The spelling of 7930742688 in words is "seven billion, nine hundred thirty million, seven hundred forty-two thousand, six hundred eighty-eight".