19392672017 has 4 divisors (see below), whose sum is σ = 19407788400. Its totient is φ = 19377555636.

The previous prime is 19392672011. The next prime is 19392672029. The reversal of 19392672017 is 71027629391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71027629391 = 719 ⋅98786689.

It is a cyclic number.

It is not a de Polignac number, because 19392672017 - 2¹⁸ = 19392409873 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 7556267 + ... + 7558832.

It is an arithmetic number, because the mean of its divisors is an integer number (4851947100).

Almost surely, 2^19392672017 is an apocalyptic number.

It is an amenable number.

19392672017 is a deficient number, since it is larger than the sum of its proper divisors (15116383).

19392672017 is a wasteful number, since it uses less digits than its factorization.

19392672017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15116382.

The product of its (nonzero) digits is 285768, while the sum is 47.

The spelling of 19392672017 in words is "nineteen billion, three hundred ninety-two million, six hundred seventy-two thousand, seventeen".