12454392618 has 24 divisors (see below), whose sum is σ = 27251694756. Its totient is φ = 4110360000.

The previous prime is 12454392617. The next prime is 12454392623. The reversal of 12454392618 is 81629345421.

12454392618 is a `hidden beast` number, since 1 + 2 + 4 + 543 + 92 + 6 + 18 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8822281329 + 3632111289 = 93927^2 + 60267^2 .

It is a super-3 number, since 3×12454392618³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12454392611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3423483 + ... + 3427118.

Almost surely, 2^12454392618 is an apocalyptic number.

12454392618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12454392618 is an abundant number, since it is smaller than the sum of its proper divisors (14797302138).

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

12454392618 is a wasteful number, since it uses less digits than its factorization.

12454392618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6850710 (or 6850707 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 12454392618 in words is "twelve billion, four hundred fifty-four million, three hundred ninety-two thousand, six hundred eighteen".