975972918839 has 2 divisors, whose sum is σ = 975972918840. Its totient is φ = 975972918838.

The previous prime is 975972918827. The next prime is 975972918857. The reversal of 975972918839 is 938819279579.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-975972918839 is a prime.

It is a super-2 number, since 2×975972918839² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 975972918839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (975972912839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487986459419 + 487986459420.

It is an arithmetic number, because the mean of its divisors is an integer number (487986459420).

Almost surely, 2^975972918839 is an apocalyptic number.

975972918839 is a deficient number, since it is larger than the sum of its proper divisors (1).

975972918839 is an equidigital number, since it uses as much as digits as its factorization.

975972918839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 617258880, while the sum is 77.

The spelling of 975972918839 in words is "nine hundred seventy-five billion, nine hundred seventy-two million, nine hundred eighteen thousand, eight hundred thirty-nine".