1979788417316 has 12 divisors (see below), whose sum is σ = 3464994072960. Its totient is φ = 989790110760.

The previous prime is 1979788417261. The next prime is 1979788417319. The reversal of 1979788417316 is 6137148879791.

It is a self number, because there is not a number n which added to its sum of digits gives 1979788417316.

It is not an unprimeable number, because it can be changed into a prime (1979788417319) 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, 25981676 + ... + 26057763.

It is an arithmetic number, because the mean of its divisors is an integer number (288749506080).

Almost surely, 2^{1979788417316} is an apocalyptic number.

It is an amenable number.

1979788417316 is a deficient number, since it is larger than the sum of its proper divisors (1485205655644).

1979788417316 is a wasteful number, since it uses less digits than its factorization.

1979788417316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52048954 (or 52048952 counting only the distinct ones).

The product of its digits is 128024064, while the sum is 71.

The spelling of 1979788417316 in words is "one trillion, nine hundred seventy-nine billion, seven hundred eighty-eight million, four hundred seventeen thousand, three hundred sixteen".