7331397975 has 72 divisors (see below), whose sum is σ = 14358045312. Its totient is φ = 3546446400.

The previous prime is 7331397973. The next prime is 7331397991. The reversal of 7331397975 is 5797931337.

It is a happy number.

It is not a de Polignac number, because 7331397975 - 2¹ = 7331397973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7331397973) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1152654 + ... + 1158996.

It is an arithmetic number, because the mean of its divisors is an integer number (199417296).

Almost surely, 2^7331397975 is an apocalyptic number.

7331397975 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7331397975 is a deficient number, since it is larger than the sum of its proper divisors (7026647337).

7331397975 is a wasteful number, since it uses less digits than its factorization.

7331397975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6837 (or 6829 counting only the distinct ones).

The product of its digits is 3750705, while the sum is 54.

The square root of 7331397975 is about 85623.5830539694. The cubic root of 7331397975 is about 1942.6546340627.

The spelling of 7331397975 in words is "seven billion, three hundred thirty-one million, three hundred ninety-seven thousand, nine hundred seventy-five".