7664074388 has 12 divisors (see below), whose sum is σ = 13416384660. Its totient is φ = 3830821632.

The previous prime is 7664074361. The next prime is 7664074391. The reversal of 7664074388 is 8834704667.

It can be written as a sum of positive squares in 2 ways, for example, as 2900037904 + 4764036484 = 53852^2 + 69022^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289631 + ... + 314982.

It is an arithmetic number, because the mean of its divisors is an integer number (1118032055).

Almost surely, 2^7664074388 is an apocalyptic number.

It is an amenable number.

7664074388 is a deficient number, since it is larger than the sum of its proper divisors (5752310272).

7664074388 is a wasteful number, since it uses less digits than its factorization.

7664074388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607786 (or 607784 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 53.

The square root of 7664074388 is about 87544.6993712355. The cubic root of 7664074388 is about 1971.6049679341.

The spelling of 7664074388 in words is "seven billion, six hundred sixty-four million, seventy-four thousand, three hundred eighty-eight".