125262729817 has 8 divisors (see below), whose sum is σ = 125727541632. Its totient is φ = 124798009200.

The previous prime is 125262729799. The next prime is 125262729847. The reversal of 125262729817 is 718927262521.

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 125262729817 - 2¹¹ = 125262727769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125262729847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4092942 + ... + 4123432.

It is an arithmetic number, because the mean of its divisors is an integer number (15715942704).

Almost surely, 2^125262729817 is an apocalyptic number.

It is an amenable number.

125262729817 is a deficient number, since it is larger than the sum of its proper divisors (464811815).

125262729817 is a wasteful number, since it uses less digits than its factorization.

125262729817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45599.

The product of its digits is 1693440, while the sum is 52.

The spelling of 125262729817 in words is "one hundred twenty-five billion, two hundred sixty-two million, seven hundred twenty-nine thousand, eight hundred seventeen".