19009130399 has 4 divisors (see below), whose sum is σ = 21724720464. Its totient is φ = 16293540336.

The previous prime is 19009130383. The next prime is 19009130419. The reversal of 19009130399 is 99303190091.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19009130399 - 2⁴ = 19009130383 is a prime.

It is a super-2 number, since 2×19009130399² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19009130339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1357795022 + ... + 1357795035.

It is an arithmetic number, because the mean of its divisors is an integer number (5431180116).

Almost surely, 2^19009130399 is an apocalyptic number.

19009130399 is a deficient number, since it is larger than the sum of its proper divisors (2715590065).

19009130399 is an equidigital number, since it uses as much as digits as its factorization.

19009130399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715590064.

The product of its (nonzero) digits is 59049, while the sum is 44.

The spelling of 19009130399 in words is "nineteen billion, nine million, one hundred thirty thousand, three hundred ninety-nine".