18106240871358 has 64 divisors (see below), whose sum is σ = 40734195163200. Its totient is φ = 6035211747648.

The previous prime is 18106240871351. The next prime is 18106240871371. The reversal of 18106240871358 is 85317804260181.

18106240871358 is a `hidden beast` number, since 1 + 8 + 1 + 0 + 624 + 0 + 8 + 7 + 1 + 3 + 5 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18106240871351) 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 31 ways as a sum of consecutive naturals, for example, 190960810 + ... + 191055602.

It is an arithmetic number, because the mean of its divisors is an integer number (636471799425).

Almost surely, 2^{18106240871358} is an apocalyptic number.

18106240871358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18106240871358 is an abundant number, since it is smaller than the sum of its proper divisors (22627954291842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18106240871358 is an frugal number, since it uses more digits than its factorization.

18106240871358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138485 (or 138467 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 18106240871358 in words is "eighteen trillion, one hundred six billion, two hundred forty million, eight hundred seventy-one thousand, three hundred fifty-eight".