975987524317 has 4 divisors (see below), whose sum is σ = 1051063487740. Its totient is φ = 900911560896.

The previous prime is 975987524251. The next prime is 975987524333. The reversal of 975987524317 is 713425789579.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 182785321156 + 793202203161 = 427534^2 + 890619^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-975987524317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975987524357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37537981692 + ... + 37537981717.

It is an arithmetic number, because the mean of its divisors is an integer number (262765871935).

Almost surely, 2^975987524317 is an apocalyptic number.

It is an amenable number.

975987524317 is a deficient number, since it is larger than the sum of its proper divisors (75075963423).

975987524317 is a wasteful number, since it uses less digits than its factorization.

975987524317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75075963422.

The product of its digits is 133358400, while the sum is 67.

The spelling of 975987524317 in words is "nine hundred seventy-five billion, nine hundred eighty-seven million, five hundred twenty-four thousand, three hundred seventeen".