19874182079 has 8 divisors (see below), whose sum is σ = 20870371680. Its totient is φ = 18889000416.

The previous prime is 19874182007. The next prime is 19874182093. The reversal of 19874182079 is 97028147891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19874182079 is a prime.

It is a super-2 number, since 2×19874182079² (a number of 21 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 (19874182379) 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, 2748284 + ... + 2755505.

It is an arithmetic number, because the mean of its divisors is an integer number (2608796460).

Almost surely, 2^19874182079 is an apocalyptic number.

19874182079 is a deficient number, since it is larger than the sum of its proper divisors (996189601).

19874182079 is a wasteful number, since it uses less digits than its factorization.

19874182079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503969.

The product of its (nonzero) digits is 2032128, while the sum is 56.

The spelling of 19874182079 in words is "nineteen billion, eight hundred seventy-four million, one hundred eighty-two thousand, seventy-nine".