12342081618 has 20 divisors (see below), whose sum is σ = 27655405470. Its totient is φ = 4114027152.

The previous prime is 12342081581. The next prime is 12342081629. The reversal of 12342081618 is 81618024321.

12342081618 is a `hidden beast` number, since 1 + 2 + 34 + 2 + 0 + 8 + 1 + 618 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8186087529 + 4155994089 = 90477^2 + 64467^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38092683 + ... + 38093006.

Almost surely, 2^12342081618 is an apocalyptic number.

12342081618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12342081618 is an abundant number, since it is smaller than the sum of its proper divisors (15313323852).

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

12342081618 is an equidigital number, since it uses as much as digits as its factorization.

12342081618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76185703 (or 76185694 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 12342081618 in words is "twelve billion, three hundred forty-two million, eighty-one thousand, six hundred eighteen".