12453640841774 has 16 divisors (see below), whose sum is σ = 21451247383680. Its totient is φ = 5362811845560.

The previous prime is 12453640841749. The next prime is 12453640841791. The reversal of 12453640841774 is 47714804635421.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14896699154 + ... + 14896699989.

It is an arithmetic number, because the mean of its divisors is an integer number (1340702961480).

Almost surely, 2^{12453640841774} is an apocalyptic number.

12453640841774 is a deficient number, since it is larger than the sum of its proper divisors (8997606541906).

12453640841774 is a wasteful number, since it uses less digits than its factorization.

12453640841774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29793399175.

The product of its (nonzero) digits is 18063360, while the sum is 56.

The spelling of 12453640841774 in words is "twelve trillion, four hundred fifty-three billion, six hundred forty million, eight hundred forty-one thousand, seven hundred seventy-four".