12718577538012 has 24 divisors (see below), whose sum is σ = 29677795950096. Its totient is φ = 4239366556288.

The previous prime is 12718577537987. The next prime is 12718577538059. The reversal of 12718577538012 is 21083577581721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19578303 + ... + 20217494.

It is an arithmetic number, because the mean of its divisors is an integer number (1236574831254).

Almost surely, 2^{12718577538012} is an apocalyptic number.

12718577538012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12718577538012 is an abundant number, since it is smaller than the sum of its proper divisors (16959218412084).

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

12718577538012 is a wasteful number, since it uses less digits than its factorization.

12718577538012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39822437 (or 39822435 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 57.

The spelling of 12718577538012 in words is "twelve trillion, seven hundred eighteen billion, five hundred seventy-seven million, five hundred thirty-eight thousand, twelve".