19270780899 has 16 divisors (see below), whose sum is σ = 27212280480. Its totient is φ = 12088593920.

The previous prime is 19270780871. The next prime is 19270780909. The reversal of 19270780899 is 99808707291.

It is not a de Polignac number, because 19270780899 - 2²⁰ = 19269732323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19270780499) 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, 182737 + ... + 268205.

It is an arithmetic number, because the mean of its divisors is an integer number (1700767530).

Almost surely, 2^19270780899 is an apocalyptic number.

19270780899 is a deficient number, since it is larger than the sum of its proper divisors (7941499581).

19270780899 is a wasteful number, since it uses less digits than its factorization.

19270780899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89910.

The product of its (nonzero) digits is 4572288, while the sum is 60.

The spelling of 19270780899 in words is "nineteen billion, two hundred seventy million, seven hundred eighty thousand, eight hundred ninety-nine".