18347099325 has 12 divisors (see below), whose sum is σ = 30333871008. Its totient is φ = 9785119600.

The previous prime is 18347099317. The next prime is 18347099357. The reversal of 18347099325 is 52399074381.

It is not a de Polignac number, because 18347099325 - 2³ = 18347099317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122313921 + ... + 122314070.

It is an arithmetic number, because the mean of its divisors is an integer number (2527822584).

Almost surely, 2^18347099325 is an apocalyptic number.

18347099325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18347099325 is a deficient number, since it is larger than the sum of its proper divisors (11986771683).

18347099325 is a wasteful number, since it uses less digits than its factorization.

18347099325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244628004 (or 244627999 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 18347099325 in words is "eighteen billion, three hundred forty-seven million, ninety-nine thousand, three hundred twenty-five".