19675979736 has 64 divisors (see below), whose sum is σ = 56848780800. Its totient is φ = 5558539008.

The previous prime is 19675979723. The next prime is 19675979783. The reversal of 19675979736 is 63797957691.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643020 + ... + 672923.

It is an arithmetic number, because the mean of its divisors is an integer number (888262200).

Almost surely, 2^19675979736 is an apocalyptic number.

It is an amenable number.

19675979736 is an abundant number, since it is smaller than the sum of its proper divisors (37172801064).

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

19675979736 is a wasteful number, since it uses less digits than its factorization.

19675979736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316048 (or 1316044 counting only the distinct ones).

The product of its digits is 135025380, while the sum is 69.

The spelling of 19675979736 in words is "nineteen billion, six hundred seventy-five million, nine hundred seventy-nine thousand, seven hundred thirty-six".