19097331609 has 8 divisors (see below), whose sum is σ = 25483338720. Its totient is φ = 12721439456.

The previous prime is 19097331581. The next prime is 19097331611. The reversal of 19097331609 is 90613379091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19097331609 - 2¹⁵ = 19097298841 is a prime.

It is a super-2 number, since 2×19097331609² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19097331619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2524332 + ... + 2531885.

It is an arithmetic number, because the mean of its divisors is an integer number (3185417340).

Almost surely, 2^19097331609 is an apocalyptic number.

It is an amenable number.

19097331609 is a deficient number, since it is larger than the sum of its proper divisors (6386007111).

19097331609 is a wasteful number, since it uses less digits than its factorization.

19097331609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5057479.

The product of its (nonzero) digits is 275562, while the sum is 48.

The spelling of 19097331609 in words is "nineteen billion, ninety-seven million, three hundred thirty-one thousand, six hundred nine".