979979979979 has 96 divisors (see below), whose sum is σ = 1354051762560. Its totient is φ = 689990400000.

The previous prime is 979979979893. The next prime is 979979979997.

979979979979 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 979979979979 - 2²¹ = 979977882827 is a prime.

It is a super-2 number, since 2×979979979979² (a number of 25 digits) contains 22 as substring.

979979979979 is a modest number, since divided by 979979979 gives 979 as remainder.

It is not an unprimeable number, because it can be changed into a prime (979979979379) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 98972929 + ... + 98982829.

It is an arithmetic number, because the mean of its divisors is an integer number (14104705860).

Almost surely, 2^979979979979 is an apocalyptic number.

979979979979 is a deficient number, since it is larger than the sum of its proper divisors (374071782581).

979979979979 is a wasteful number, since it uses less digits than its factorization.

979979979979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10133 (or 10122 counting only the distinct ones).

The product of its digits is 103355177121, while the sum is 100.

The spelling of 979979979979 in words is "nine hundred seventy-nine billion, nine hundred seventy-nine million, nine hundred seventy-nine thousand, nine hundred seventy-nine".