7668128874 has 48 divisors (see below), whose sum is σ = 18142552800. Its totient is φ = 2153755296.

The previous prime is 7668128857. The next prime is 7668128879. The reversal of 7668128874 is 4788218667.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7668128879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203689 + ... + 238380.

It is an arithmetic number, because the mean of its divisors is an integer number (377969850).

Almost surely, 2^7668128874 is an apocalyptic number.

7668128874 is an abundant number, since it is smaller than the sum of its proper divisors (10474423926).

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

7668128874 is a wasteful number, since it uses less digits than its factorization.

7668128874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442147 (or 442140 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 57.

The square root of 7668128874 is about 87567.8529712816. The cubic root of 7668128874 is about 1971.9525826667.

The spelling of 7668128874 in words is "seven billion, six hundred sixty-eight million, one hundred twenty-eight thousand, eight hundred seventy-four".