18093127257 has 12 divisors (see below), whose sum is σ = 26162126640. Its totient is φ = 12049342008.

The previous prime is 18093127253. The next prime is 18093127259. The reversal of 18093127257 is 75272139081.

18093127257 is a `hidden beast` number, since 1 + 80 + 9 + 312 + 7 + 257 = 666.

It is not a de Polignac number, because 18093127257 - 2² = 18093127253 is a prime.

It is a super-2 number, since 2×18093127257² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18093127253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1052907 + ... + 1069952.

It is an arithmetic number, because the mean of its divisors is an integer number (2180177220).

Almost surely, 2^18093127257 is an apocalyptic number.

It is an amenable number.

18093127257 is a deficient number, since it is larger than the sum of its proper divisors (8068999383).

18093127257 is a wasteful number, since it uses less digits than its factorization.

18093127257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123812 (or 2123809 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 18093127257 in words is "eighteen billion, ninety-three million, one hundred twenty-seven thousand, two hundred fifty-seven".