7668131658 has 16 divisors (see below), whose sum is σ = 16730469216. Its totient is φ = 2323676240.

The previous prime is 7668131651. The next prime is 7668131689. The reversal of 7668131658 is 8561318667.

It is a self number, because there is not a number n which added to its sum of digits gives 7668131658.

It is not an unprimeable number, because it can be changed into a prime (7668131651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58091841 + ... + 58091972.

It is an arithmetic number, because the mean of its divisors is an integer number (1045654326).

Almost surely, 2^7668131658 is an apocalyptic number.

7668131658 is an abundant number, since it is smaller than the sum of its proper divisors (9062337558).

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

7668131658 is a wasteful number, since it uses less digits than its factorization.

7668131658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116183829.

The product of its digits is 1451520, while the sum is 51.

The square root of 7668131658 is about 87567.8688675247. The cubic root of 7668131658 is about 1971.9528213131.

The spelling of 7668131658 in words is "seven billion, six hundred sixty-eight million, one hundred thirty-one thousand, six hundred fifty-eight".