12454435681018 has 32 divisors (see below), whose sum is σ = 19217787036480. Its totient is φ = 6051096965760.

The previous prime is 12454435680989. The next prime is 12454435681087. The reversal of 12454435681018 is 81018653445421.

It is a super-2 number, since 2×12454435681018² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12134721 + ... + 13120987.

It is an arithmetic number, because the mean of its divisors is an integer number (600555844890).

Almost surely, 2^{12454435681018} is an apocalyptic number.

12454435681018 is a deficient number, since it is larger than the sum of its proper divisors (6763351355462).

12454435681018 is a wasteful number, since it uses less digits than its factorization.

12454435681018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987582.

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 12454435681018 in words is "twelve trillion, four hundred fifty-four billion, four hundred thirty-five million, six hundred eighty-one thousand, eighteen".