18136117459207 has 16 divisors (see below), whose sum is σ = 20829714710400. Its totient is φ = 15616959351840.

The previous prime is 18136117459199. The next prime is 18136117459223. The reversal of 18136117459207 is 70295471163181.

It is not a de Polignac number, because 18136117459207 - 2³ = 18136117459199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18136117459297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6169032 + ... + 8621437.

It is an arithmetic number, because the mean of its divisors is an integer number (1301857169400).

It is a 1-persistent number, because it is pandigital, but 2⋅18136117459207 = 36272234918414 is not.

Almost surely, 2^{18136117459207} is an apocalyptic number.

18136117459207 is a deficient number, since it is larger than the sum of its proper divisors (2693597251193).

18136117459207 is a wasteful number, since it uses less digits than its factorization.

18136117459207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14796366.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 18136117459207 in words is "eighteen trillion, one hundred thirty-six billion, one hundred seventeen million, four hundred fifty-nine thousand, two hundred seven".