7664149685 has 16 divisors (see below), whose sum is σ = 9541401600. Its totient is φ = 5903694720.

The previous prime is 7664149679. The next prime is 7664149807. The reversal of 7664149685 is 5869414667.

It is not a de Polignac number, because 7664149685 - 2⁶ = 7664149621 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 7664149685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93392 + ... + 155081.

It is an arithmetic number, because the mean of its divisors is an integer number (596337600).

Almost surely, 2^7664149685 is an apocalyptic number.

It is an amenable number.

7664149685 is a deficient number, since it is larger than the sum of its proper divisors (1877251915).

7664149685 is a wasteful number, since it uses less digits than its factorization.

7664149685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248708.

The product of its digits is 8709120, while the sum is 56.

The square root of 7664149685 is about 87545.1294190602. The cubic root of 7664149685 is about 1971.6114247022.

The spelling of 7664149685 in words is "seven billion, six hundred sixty-four million, one hundred forty-nine thousand, six hundred eighty-five".