126441453617 has 2 divisors, whose sum is σ = 126441453618. Its totient is φ = 126441453616.

The previous prime is 126441453599. The next prime is 126441453623. The reversal of 126441453617 is 716354144621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109422685681 + 17018767936 = 330791^2 + 130456^2 .

It is a cyclic number.

It is not a de Polignac number, because 126441453617 - 2¹⁴ = 126441437233 is a prime.

It is not a weakly prime, because it can be changed into another prime (126441453637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63220726808 + 63220726809.

It is an arithmetic number, because the mean of its divisors is an integer number (63220726809).

Almost surely, 2^126441453617 is an apocalyptic number.

It is an amenable number.

126441453617 is a deficient number, since it is larger than the sum of its proper divisors (1).

126441453617 is an equidigital number, since it uses as much as digits as its factorization.

126441453617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The spelling of 126441453617 in words is "one hundred twenty-six billion, four hundred forty-one million, four hundred fifty-three thousand, six hundred seventeen".