979999999996 has 24 divisors (see below), whose sum is σ = 1790251575840. Its totient is φ = 468515891712.

The previous prime is 979999999919. The next prime is 980000000009. The reversal of 979999999996 is 699999999979.

It is a junction number, because it is equal to n+sod(n) for n = 979999999895 and 979999999904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801401 + ... + 2281456.

It is an arithmetic number, because the mean of its divisors is an integer number (74593815660).

Almost surely, 2^979999999996 is an apocalyptic number.

It is an amenable number.

979999999996 is a deficient number, since it is larger than the sum of its proper divisors (810251575844).

979999999996 is a wasteful number, since it uses less digits than its factorization.

979999999996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085493 (or 4085491 counting only the distinct ones).

The product of its digits is 146444944842, while the sum is 103.

The spelling of 979999999996 in words is "nine hundred seventy-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-six".