18928130393 has 8 divisors (see below), whose sum is σ = 19824523200. Its totient is φ = 18037856848.

The previous prime is 18928130387. The next prime is 18928130449. The reversal of 18928130393 is 39303182981.

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 18928130393 - 2¹⁸ = 18927868249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18928130593) 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, 1523483 + ... + 1535856.

It is an arithmetic number, because the mean of its divisors is an integer number (2478065400).

Almost surely, 2^18928130393 is an apocalyptic number.

It is an amenable number.

18928130393 is a deficient number, since it is larger than the sum of its proper divisors (896392807).

18928130393 is a wasteful number, since it uses less digits than its factorization.

18928130393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059631.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 18928130393 in words is "eighteen billion, nine hundred twenty-eight million, one hundred thirty thousand, three hundred ninety-three".