19579686104 has 16 divisors (see below), whose sum is σ = 40049358120. Its totient is φ = 8899857280.

The previous prime is 19579686103. The next prime is 19579686227. The reversal of 19579686104 is 40168697591.

It is a self number, because there is not a number n which added to its sum of digits gives 19579686104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19579686101) 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, 111248129 + ... + 111248304.

Almost surely, 2^19579686104 is an apocalyptic number.

It is an amenable number.

19579686104 is an abundant number, since it is smaller than the sum of its proper divisors (20469672016).

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

19579686104 is a wasteful number, since it uses less digits than its factorization.

19579686104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222496450 (or 222496446 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 19579686104 in words is "nineteen billion, five hundred seventy-nine million, six hundred eighty-six thousand, one hundred four".