12812037726458 has 4 divisors (see below), whose sum is σ = 19218056589690. Its totient is φ = 6406018863228.

The previous prime is 12812037726431. The next prime is 12812037726563. The reversal of 12812037726458 is 85462773021821.

It is a happy number.

12812037726458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9105384705169 + 3706653021289 = 3017513^2 + 1925267^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3203009431613 + ... + 3203009431616.

Almost surely, 2^{12812037726458} is an apocalyptic number.

12812037726458 is a deficient number, since it is larger than the sum of its proper divisors (6406018863232).

12812037726458 is an equidigital number, since it uses as much as digits as its factorization.

12812037726458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6406018863231.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 12812037726458 in words is "twelve trillion, eight hundred twelve billion, thirty-seven million, seven hundred twenty-six thousand, four hundred fifty-eight".