19044091140 has 48 divisors (see below), whose sum is σ = 53795363328. Its totient is φ = 5033480704.

The previous prime is 19044091139. The next prime is 19044091141. The reversal of 19044091140 is 4119044091.

It is an interprime number because it is at equal distance from previous prime (19044091139) and next prime (19044091141).

It is not an unprimeable number, because it can be changed into a prime (19044091141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1397652 + ... + 1411211.

It is an arithmetic number, because the mean of its divisors is an integer number (1120736736).

Almost surely, 2^19044091140 is an apocalyptic number.

19044091140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19044091140 is an abundant number, since it is smaller than the sum of its proper divisors (34751272188).

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

19044091140 is a wasteful number, since it uses less digits than its factorization.

19044091140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808988 (or 2808986 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 19044091140 in words is "nineteen billion, forty-four million, ninety-one thousand, one hundred forty".