7668517879 has 16 divisors (see below), whose sum is σ = 9163199520. Its totient is φ = 6335042560.

The previous prime is 7668517877. The next prime is 7668517921. The reversal of 7668517879 is 9787158667.

It is not a de Polignac number, because 7668517879 - 2¹ = 7668517877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7668517879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668517873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701614 + ... + 712459.

It is an arithmetic number, because the mean of its divisors is an integer number (572699970).

Almost surely, 2^7668517879 is an apocalyptic number.

7668517879 is a deficient number, since it is larger than the sum of its proper divisors (1494681641).

7668517879 is a wasteful number, since it uses less digits than its factorization.

7668517879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414130.

The product of its digits is 35562240, while the sum is 64.

The square root of 7668517879 is about 87570.0741063978. The cubic root of 7668517879 is about 1971.9859278915.

The spelling of 7668517879 in words is "seven billion, six hundred sixty-eight million, five hundred seventeen thousand, eight hundred seventy-nine".