12126782551142 has 32 divisors (see below), whose sum is σ = 21888779692800. Its totient is φ = 4922336716128.

The previous prime is 12126782551099. The next prime is 12126782551171. The reversal of 12126782551142 is 24115528762121.

12126782551142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 5113292 + ... + 7099247.

It is an arithmetic number, because the mean of its divisors is an integer number (684024365400).

Almost surely, 2^{12126782551142} is an apocalyptic number.

12126782551142 is a deficient number, since it is larger than the sum of its proper divisors (9761997141658).

12126782551142 is a wasteful number, since it uses less digits than its factorization.

12126782551142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12216300.

The product of its digits is 537600, while the sum is 47.

The spelling of 12126782551142 in words is "twelve trillion, one hundred twenty-six billion, seven hundred eighty-two million, five hundred fifty-one thousand, one hundred forty-two".