18979365966119 has 16 divisors (see below), whose sum is σ = 20569336039392. Its totient is φ = 17408018354688.

The previous prime is 18979365966101. The next prime is 18979365966131. The reversal of 18979365966119 is 91166956397981.

It is not a de Polignac number, because 18979365966119 - 2⁴⁴ = 1387179921703 is a prime.

It is a super-2 number, since 2×18979365966119² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18979365963119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8439587 + ... + 10449179.

It is an arithmetic number, because the mean of its divisors is an integer number (1285583502462).

Almost surely, 2^{18979365966119} is an apocalyptic number.

18979365966119 is a deficient number, since it is larger than the sum of its proper divisors (1589970073273).

18979365966119 is a wasteful number, since it uses less digits than its factorization.

18979365966119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014226.

The product of its digits is 1190427840, while the sum is 80.

The spelling of 18979365966119 in words is "eighteen trillion, nine hundred seventy-nine billion, three hundred sixty-five million, nine hundred sixty-six thousand, one hundred nineteen".