19418466234 has 16 divisors (see below), whose sum is σ = 39740117472. Its totient is φ = 6322291248.

The previous prime is 19418466229. The next prime is 19418466253. The reversal of 19418466234 is 43266481491.

It is a happy 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, 37632429 + ... + 37632944.

It is an arithmetic number, because the mean of its divisors is an integer number (2483757342).

Almost surely, 2^19418466234 is an apocalyptic number.

19418466234 is an abundant number, since it is smaller than the sum of its proper divisors (20321651238).

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

19418466234 is a wasteful number, since it uses less digits than its factorization.

19418466234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75265421.

The product of its digits is 995328, while the sum is 48.

The spelling of 19418466234 in words is "nineteen billion, four hundred eighteen million, four hundred sixty-six thousand, two hundred thirty-four".