979897197312 has 432 divisors, whose sum is σ = 3194816395680. Its totient is φ = 286123622400.

The previous prime is 979897197299. The next prime is 979897197347. The reversal of 979897197312 is 213791798979.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 485818128 + ... + 485820144.

Almost surely, 2^979897197312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 979897197312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1597408197840).

979897197312 is an abundant number, since it is smaller than the sum of its proper divisors (2214919198368).

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

979897197312 is a wasteful number, since it uses less digits than its factorization.

979897197312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740 (or 2723 counting only the distinct ones).

The product of its digits is 108020304, while the sum is 72.

The spelling of 979897197312 in words is "nine hundred seventy-nine billion, eight hundred ninety-seven million, one hundred ninety-seven thousand, three hundred twelve".