19404091297 has 8 divisors (see below), whose sum is σ = 20426703200. Its totient is φ = 18381613824.

The previous prime is 19404091283. The next prime is 19404091303. The reversal of 19404091297 is 79219040491.

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 19404091297 - 2¹⁹ = 19403567009 is a prime.

It is a super-2 number, since 2×19404091297² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19404091207) 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, 419329 + ... + 463297.

It is an arithmetic number, because the mean of its divisors is an integer number (2553337900).

Almost surely, 2^19404091297 is an apocalyptic number.

It is an amenable number.

19404091297 is a deficient number, since it is larger than the sum of its proper divisors (1022611903).

19404091297 is a wasteful number, since it uses less digits than its factorization.

19404091297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67215.

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 19404091297 in words is "nineteen billion, four hundred four million, ninety-one thousand, two hundred ninety-seven".