18956214325 has 12 divisors (see below), whose sum is σ = 23508227520. Its totient is φ = 15163344560.

The previous prime is 18956214287. The next prime is 18956214341. The reversal of 18956214325 is 52341265981.

It is not a de Polignac number, because 18956214325 - 2²³ = 18947825717 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, 233172 + ... + 303778.

It is an arithmetic number, because the mean of its divisors is an integer number (1959018960).

Almost surely, 2^18956214325 is an apocalyptic number.

It is an amenable number.

18956214325 is a deficient number, since it is larger than the sum of its proper divisors (4552013195).

18956214325 is a wasteful number, since it uses less digits than its factorization.

18956214325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81356 (or 81351 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The spelling of 18956214325 in words is "eighteen billion, nine hundred fifty-six million, two hundred fourteen thousand, three hundred twenty-five".