7913872660 has 24 divisors (see below), whose sum is σ = 17341704576. Its totient is φ = 3027916320.

The previous prime is 7913872651. The next prime is 7913872661. The reversal of 7913872660 is 662783197.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7913872661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8601576 + ... + 8602495.

It is an arithmetic number, because the mean of its divisors is an integer number (722571024).

Almost surely, 2^7913872660 is an apocalyptic number.

It is an amenable number.

7913872660 is an abundant number, since it is smaller than the sum of its proper divisors (9427831916).

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

7913872660 is a wasteful number, since it uses less digits than its factorization.

7913872660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17204103 (or 17204101 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 7913872660 is about 88959.9497526837. The cubic root of 7913872660 is about 1992.7968098378.

The spelling of 7913872660 in words is "seven billion, nine hundred thirteen million, eight hundred seventy-two thousand, six hundred sixty".