19392672018 has 16 divisors (see below), whose sum is σ = 38807901216. Its totient is φ = 6460464480.

The previous prime is 19392672011. The next prime is 19392672029. The reversal of 19392672018 is 81027629391.

It is not an unprimeable number, because it can be changed into a prime (19392672011) 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, 928696 + ... + 949347.

It is an arithmetic number, because the mean of its divisors is an integer number (2425493826).

Almost surely, 2^19392672018 is an apocalyptic number.

19392672018 is an abundant number, since it is smaller than the sum of its proper divisors (19415229198).

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

19392672018 is a wasteful number, since it uses less digits than its factorization.

19392672018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879769.

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 19392672018 in words is "nineteen billion, three hundred ninety-two million, six hundred seventy-two thousand, eighteen".