125854344643 has 2 divisors, whose sum is σ = 125854344644. Its totient is φ = 125854344642.

The previous prime is 125854344599. The next prime is 125854344647. The reversal of 125854344643 is 346443458521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125854344643 - 2³³ = 117264410051 is a prime.

It is not a weakly prime, because it can be changed into another prime (125854344647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62927172321 + 62927172322.

It is an arithmetic number, because the mean of its divisors is an integer number (62927172322).

Almost surely, 2^125854344643 is an apocalyptic number.

125854344643 is a deficient number, since it is larger than the sum of its proper divisors (1).

125854344643 is an equidigital number, since it uses as much as digits as its factorization.

125854344643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5529600, while the sum is 49.

The spelling of 125854344643 in words is "one hundred twenty-five billion, eight hundred fifty-four million, three hundred forty-four thousand, six hundred forty-three".