19389407124 has 24 divisors (see below), whose sum is σ = 45365235328. Its totient is φ = 6445523520.

The previous prime is 19389407117. The next prime is 19389407173. The reversal of 19389407124 is 42170498391.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196937 + ... + 2205744.

Almost surely, 2^19389407124 is an apocalyptic number.

It is an amenable number.

19389407124 is an abundant number, since it is smaller than the sum of its proper divisors (25975828204).

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

19389407124 is a wasteful number, since it uses less digits than its factorization.

19389407124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4403055 (or 4403053 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 19389407124 in words is "nineteen billion, three hundred eighty-nine million, four hundred seven thousand, one hundred twenty-four".