125775739519 has 8 divisors (see below), whose sum is σ = 128520881280. Its totient is φ = 123057643800.

The previous prime is 125775739511. The next prime is 125775739541. The reversal of 125775739519 is 915937577521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125775739519 - 2³ = 125775739511 is a prime.

It is a super-2 number, since 2×125775739519² (a number of 23 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 (125775739511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6752109 + ... + 6770710.

It is an arithmetic number, because the mean of its divisors is an integer number (16065110160).

Almost surely, 2^125775739519 is an apocalyptic number.

125775739519 is a deficient number, since it is larger than the sum of its proper divisors (2745141761).

125775739519 is a wasteful number, since it uses less digits than its factorization.

125775739519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13523021.

The product of its digits is 20837250, while the sum is 61.

The spelling of 125775739519 in words is "one hundred twenty-five billion, seven hundred seventy-five million, seven hundred thirty-nine thousand, five hundred nineteen".