125796919577 has 12 divisors (see below), whose sum is σ = 151381234980. Its totient is φ = 104107794336.

The previous prime is 125796919517. The next prime is 125796919597. The reversal of 125796919577 is 775919697521.

It can be written as a sum of positive squares in 2 ways, for example, as 29165466841 + 96631452736 = 170779^2 + 310856^2 .

It is not a de Polignac number, because 125796919577 - 2⁶ = 125796919513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125796919517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44262098 + ... + 44264939.

It is an arithmetic number, because the mean of its divisors is an integer number (12615102915).

Almost surely, 2^125796919577 is an apocalyptic number.

It is an amenable number.

125796919577 is a deficient number, since it is larger than the sum of its proper divisors (25584315403).

125796919577 is an equidigital number, since it uses as much as digits as its factorization.

125796919577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88527080 (or 88527073 counting only the distinct ones).

The product of its digits is 75014100, while the sum is 68.

The spelling of 125796919577 in words is "one hundred twenty-five billion, seven hundred ninety-six million, nine hundred nineteen thousand, five hundred seventy-seven".