979231209957 has 480 divisors, whose sum is σ = 2068077699072. Its totient is φ = 448807392000.

The previous prime is 979231209919. The next prime is 979231209959. The reversal of 979231209957 is 759902132979.

It is not a de Polignac number, because 979231209957 - 2¹¹ = 979231207909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 979231209894 and 979231209903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979231209959) by changing a digit.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 2958402282 + ... + 2958402612.

Almost surely, 2^979231209957 is an apocalyptic number.

It is an amenable number.

979231209957 is an abundant number, since it is smaller than the sum of its proper divisors (1088846489115).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

979231209957 is a wasteful number, since it uses less digits than its factorization.

979231209957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 19289340, while the sum is 63.

The spelling of 979231209957 in words is "nine hundred seventy-nine billion, two hundred thirty-one million, two hundred nine thousand, nine hundred fifty-seven".