979430976131 has 4 divisors (see below), whose sum is σ = 1005902083632. Its totient is φ = 952959868632.

The previous prime is 979430976119. The next prime is 979430976191. The reversal of 979430976131 is 131679034979.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-979430976131 is a prime.

It is a super-2 number, since 2×979430976131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979430976191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13235553695 + ... + 13235553768.

It is an arithmetic number, because the mean of its divisors is an integer number (251475520908).

Almost surely, 2^979430976131 is an apocalyptic number.

979430976131 is a deficient number, since it is larger than the sum of its proper divisors (26471107501).

979430976131 is a wasteful number, since it uses less digits than its factorization.

979430976131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26471107500.

The product of its (nonzero) digits is 7715736, while the sum is 59.

The spelling of 979430976131 in words is "nine hundred seventy-nine billion, four hundred thirty million, nine hundred seventy-six thousand, one hundred thirty-one".