79219864986 has 32 divisors (see below), whose sum is σ = 168002641728. Its totient is φ = 24817301760.

The previous prime is 79219864961. The next prime is 79219865047. The reversal of 79219864986 is 68946891297.

It is a self number, because there is not a number n which added to its sum of digits gives 79219864986.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491505 + ... + 632468.

It is an arithmetic number, because the mean of its divisors is an integer number (5250082554).

Almost surely, 2^79219864986 is an apocalyptic number.

79219864986 is an abundant number, since it is smaller than the sum of its proper divisors (88782776742).

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

79219864986 is a wasteful number, since it uses less digits than its factorization.

79219864986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124686.

The product of its digits is 94058496, while the sum is 69.

The spelling of 79219864986 in words is "seventy-nine billion, two hundred nineteen million, eight hundred sixty-four thousand, nine hundred eighty-six".