126425645369 has 2 divisors, whose sum is σ = 126425645370. Its totient is φ = 126425645368.

The previous prime is 126425645267. The next prime is 126425645387. The reversal of 126425645369 is 963546524621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88804000000 + 37621645369 = 298000^2 + 193963^2 .

It is an emirp because it is prime and its reverse (963546524621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126425645369 - 2³² = 122130678073 is a prime.

It is a super-2 number, since 2×126425645369² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126425645369.

It is not a weakly prime, because it can be changed into another prime (126425645389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63212822684 + 63212822685.

It is an arithmetic number, because the mean of its divisors is an integer number (63212822685).

Almost surely, 2^126425645369 is an apocalyptic number.

It is an amenable number.

126425645369 is a deficient number, since it is larger than the sum of its proper divisors (1).

126425645369 is an equidigital number, since it uses as much as digits as its factorization.

126425645369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 53.

The spelling of 126425645369 in words is "one hundred twenty-six billion, four hundred twenty-five million, six hundred forty-five thousand, three hundred sixty-nine".