19389344354 has 32 divisors (see below), whose sum is σ = 29630697600. Its totient is φ = 9514713600.

The previous prime is 19389344329. The next prime is 19389344363. The reversal of 19389344354 is 45344398391.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19389344296 and 19389344305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9611954 + ... + 9613970.

It is an arithmetic number, because the mean of its divisors is an integer number (925959300).

Almost surely, 2^19389344354 is an apocalyptic number.

19389344354 is a deficient number, since it is larger than the sum of its proper divisors (10241353246).

19389344354 is a wasteful number, since it uses less digits than its factorization.

19389344354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538.

The product of its digits is 5598720, while the sum is 53.

The spelling of 19389344354 in words is "nineteen billion, three hundred eighty-nine million, three hundred forty-four thousand, three hundred fifty-four".