125574757739 has 2 divisors, whose sum is σ = 125574757740. Its totient is φ = 125574757738.

The previous prime is 125574757723. The next prime is 125574757751. The reversal of 125574757739 is 937757475521.

It is a strong prime.

It is an emirp because it is prime and its reverse (937757475521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125574757739 - 2⁴ = 125574757723 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (125574757039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62787378869 + 62787378870.

It is an arithmetic number, because the mean of its divisors is an integer number (62787378870).

Almost surely, 2^125574757739 is an apocalyptic number.

125574757739 is a deficient number, since it is larger than the sum of its proper divisors (1).

125574757739 is an equidigital number, since it uses as much as digits as its factorization.

125574757739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64827000, while the sum is 62.

The spelling of 125574757739 in words is "one hundred twenty-five billion, five hundred seventy-four million, seven hundred fifty-seven thousand, seven hundred thirty-nine".