18357351147 has 12 divisors (see below), whose sum is σ = 26521084720. Its totient is φ = 12235967568.

The previous prime is 18357351073. The next prime is 18357351191. The reversal of 18357351147 is 74115375381.

18357351147 is a `hidden beast` number, since 1 + 83 + 57 + 3 + 511 + 4 + 7 = 666.

It is not a de Polignac number, because 18357351147 - 2¹² = 18357347051 is a prime.

It is a super-2 number, since 2×18357351147² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18357351547) 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, 136828 + ... + 235449.

Almost surely, 2^18357351147 is an apocalyptic number.

18357351147 is a deficient number, since it is larger than the sum of its proper divisors (8163733573).

18357351147 is a wasteful number, since it uses less digits than its factorization.

18357351147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377762 (or 377759 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The spelling of 18357351147 in words is "eighteen billion, three hundred fifty-seven million, three hundred fifty-one thousand, one hundred forty-seven".