7971275524 has 9 divisors (see below), whose sum is σ = 13950044661. Its totient is φ = 3985548480.

The previous prime is 7971275497. The next prime is 7971275567. The reversal of 7971275524 is 4255721797.

The square root of 7971275524 is 89282.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5957061124 + 2014214400 = 77182^2 + 44880^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 156244 + ... + 200884.

Almost surely, 2^7971275524 is an apocalyptic number.

7971275524 is the 89282-nd square number.

It is an amenable number.

7971275524 is a deficient number, since it is larger than the sum of its proper divisors (5978769137).

7971275524 is an frugal number, since it uses more digits than its factorization.

7971275524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89286 (or 44643 counting only the distinct ones).

The product of its digits is 1234800, while the sum is 49.

The cubic root of 7971275524 is about 1997.6034230231.

Multiplying 7971275524 by its sum of digits (49), we get a square (390592500676 = 624974²).

It can be divided in two parts, 79712 and 75524, that added together give a square (155236 = 394²).

The spelling of 7971275524 in words is "seven billion, nine hundred seventy-one million, two hundred seventy-five thousand, five hundred twenty-four".