126444065593 has 2 divisors, whose sum is σ = 126444065594. Its totient is φ = 126444065592.

The previous prime is 126444065563. The next prime is 126444065639. The reversal of 126444065593 is 395560444621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108470105104 + 17973960489 = 329348^2 + 134067^2 .

It is a cyclic number.

It is not a de Polignac number, because 126444065593 - 2¹⁷ = 126443934521 is a prime.

It is not a weakly prime, because it can be changed into another prime (126444065543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63222032796 + 63222032797.

It is an arithmetic number, because the mean of its divisors is an integer number (63222032797).

Almost surely, 2^126444065593 is an apocalyptic number.

It is an amenable number.

126444065593 is a deficient number, since it is larger than the sum of its proper divisors (1).

126444065593 is an equidigital number, since it uses as much as digits as its factorization.

126444065593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 126444065593 in words is "one hundred twenty-six billion, four hundred forty-four million, sixty-five thousand, five hundred ninety-three".