19044389070 has 48 divisors (see below), whose sum is σ = 56589043680. Its totient is φ = 4353003072.

The previous prime is 19044389051. The next prime is 19044389083. The reversal of 19044389070 is 7098344091.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15113965 + ... + 15115224.

It is an arithmetic number, because the mean of its divisors is an integer number (1178938410).

Almost surely, 2^19044389070 is an apocalyptic number.

19044389070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19044389070 is an abundant number, since it is smaller than the sum of its proper divisors (37544654610).

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

19044389070 is a wasteful number, since it uses less digits than its factorization.

19044389070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30229209 (or 30229206 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 19044389070 in words is "nineteen billion, forty-four million, three hundred eighty-nine thousand, seventy".