19679693118 has 32 divisors (see below), whose sum is σ = 41437267200. Its totient is φ = 6213689856.

The previous prime is 19679693093. The next prime is 19679693123. The reversal of 19679693118 is 81139697691.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1357255 + ... + 1371677.

It is an arithmetic number, because the mean of its divisors is an integer number (1294914600).

Almost surely, 2^19679693118 is an apocalyptic number.

19679693118 is an abundant number, since it is smaller than the sum of its proper divisors (21757574082).

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

19679693118 is a wasteful number, since it uses less digits than its factorization.

19679693118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26416.

The product of its digits is 4408992, while the sum is 60.

The spelling of 19679693118 in words is "nineteen billion, six hundred seventy-nine million, six hundred ninety-three thousand, one hundred eighteen".