8126628841213 has 2 divisors, whose sum is σ = 8126628841214. Its totient is φ = 8126628841212.

The previous prime is 8126628841139. The next prime is 8126628841301. The reversal of 8126628841213 is 3121488266218.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6877181063844 + 1249447777369 = 2622438^2 + 1117787^2 .

It is a cyclic number.

It is not a de Polignac number, because 8126628841213 - 2²⁹ = 8126091970301 is a prime.

It is a super-2 number, since 2×8126628841213² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8126628841013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4063314420606 + 4063314420607.

It is an arithmetic number, because the mean of its divisors is an integer number (4063314420607).

Almost surely, 2^{8126628841213} is an apocalyptic number.

It is an amenable number.

8126628841213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8126628841213 is an equidigital number, since it uses as much as digits as its factorization.

8126628841213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1769472, while the sum is 52.

The spelling of 8126628841213 in words is "eight trillion, one hundred twenty-six billion, six hundred twenty-eight million, eight hundred forty-one thousand, two hundred thirteen".