19904698093 has 8 divisors (see below), whose sum is σ = 22766304960. Its totient is φ = 17047610880.

The previous prime is 19904698061. The next prime is 19904698109. The reversal of 19904698093 is 39089640991.

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 19904698093 - 2⁵ = 19904698061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19904698043) 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, 1120468 + ... + 1138093.

It is an arithmetic number, because the mean of its divisors is an integer number (2845788120).

Almost surely, 2^19904698093 is an apocalyptic number.

It is an amenable number.

19904698093 is a deficient number, since it is larger than the sum of its proper divisors (2861606867).

19904698093 is a wasteful number, since it uses less digits than its factorization.

19904698093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259827.

The product of its (nonzero) digits is 3779136, while the sum is 58.

The spelling of 19904698093 in words is "nineteen billion, nine hundred four million, six hundred ninety-eight thousand, ninety-three".