125758580955919 has 4 divisors (see below), whose sum is σ = 126748806002944. Its totient is φ = 124768355908896.

The previous prime is 125758580955911. The next prime is 125758580955979. The reversal of 125758580955919 is 919559085857521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125758580955919 - 2³ = 125758580955911 is a prime.

It is a super-2 number, since 2×125758580955919² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125758580955911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495112523322 + ... + 495112523575.

It is an arithmetic number, because the mean of its divisors is an integer number (31687201500736).

Almost surely, 2^{125758580955919} is an apocalyptic number.

125758580955919 is a deficient number, since it is larger than the sum of its proper divisors (990225047025).

125758580955919 is an equidigital number, since it uses as much as digits as its factorization.

125758580955919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990225047024.

The product of its (nonzero) digits is 2041200000, while the sum is 79.

The spelling of 125758580955919 in words is "one hundred twenty-five trillion, seven hundred fifty-eight billion, five hundred eighty million, nine hundred fifty-five thousand, nine hundred nineteen".