108851437207818 has 48 divisors (see below), whose sum is σ = 236086296131400. Its totient is φ = 36246665064960.

The previous prime is 108851437207783. The next prime is 108851437207889. The reversal of 108851437207818 is 818702734158801.

108851437207818 is a `hidden beast` number, since 1 + 0 + 8 + 8 + 514 + 37 + 2 + 0 + 7 + 81 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 68905156633569 + 39946280574249 = 8300913^2 + 6320307^2 .

It is a super-2 number, since 2×108851437207818² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148167078 + ... + 148899918.

Almost surely, 2^{108851437207818} is an apocalyptic number.

108851437207818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

108851437207818 is an abundant number, since it is smaller than the sum of its proper divisors (127234858923582).

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

108851437207818 is a wasteful number, since it uses less digits than its factorization.

108851437207818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741287 (or 741284 counting only the distinct ones).

The product of its (nonzero) digits is 24084480, while the sum is 63.

The spelling of 108851437207818 in words is "one hundred eight trillion, eight hundred fifty-one billion, four hundred thirty-seven million, two hundred seven thousand, eight hundred eighteen".