7396640864 has 24 divisors (see below), whose sum is σ = 14643500760. Its totient is φ = 3677656576.

The previous prime is 7396640851. The next prime is 7396640869. The reversal of 7396640864 is 4680466937.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7396640869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639929 + ... + 651384.

It is an arithmetic number, because the mean of its divisors is an integer number (610145865).

Almost surely, 2^7396640864 is an apocalyptic number.

It is an amenable number.

7396640864 is a deficient number, since it is larger than the sum of its proper divisors (7246859896).

7396640864 is a wasteful number, since it uses less digits than its factorization.

7396640864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291502 (or 1291494 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 53.

The square root of 7396640864 is about 86003.7258727783. The cubic root of 7396640864 is about 1948.4002539424.

The spelling of 7396640864 in words is "seven billion, three hundred ninety-six million, six hundred forty thousand, eight hundred sixty-four".