126365447263 has 16 divisors (see below), whose sum is σ = 144381657600. Its totient is φ = 109474451680.

The previous prime is 126365447261. The next prime is 126365447267. The reversal of 126365447263 is 362744563621.

It is not a de Polignac number, because 126365447263 - 2¹ = 126365447261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126365447261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860323 + ... + 996436.

It is an arithmetic number, because the mean of its divisors is an integer number (9023853600).

Almost surely, 2^126365447263 is an apocalyptic number.

126365447263 is a deficient number, since it is larger than the sum of its proper divisors (18016210337).

126365447263 is a wasteful number, since it uses less digits than its factorization.

126365447263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857062.

The product of its digits is 4354560, while the sum is 49.

The spelling of 126365447263 in words is "one hundred twenty-six billion, three hundred sixty-five million, four hundred forty-seven thousand, two hundred sixty-three".