19379513986 has 16 divisors (see below), whose sum is σ = 33226323264. Its totient is φ = 8304431184.

The previous prime is 19379513981. The next prime is 19379514017. The reversal of 19379513986 is 68931597391.

It is not an unprimeable number, because it can be changed into a prime (19379513981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27781 + ... + 198823.

It is an arithmetic number, because the mean of its divisors is an integer number (2076645204).

Almost surely, 2^19379513986 is an apocalyptic number.

19379513986 is a deficient number, since it is larger than the sum of its proper divisors (13846809278).

19379513986 is a wasteful number, since it uses less digits than its factorization.

19379513986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179145.

The product of its digits is 11022480, while the sum is 61.

The spelling of 19379513986 in words is "nineteen billion, three hundred seventy-nine million, five hundred thirteen thousand, nine hundred eighty-six".