125591679617 has 8 divisors (see below), whose sum is σ = 129931305600. Its totient is φ = 121252645584.

The previous prime is 125591679583. The next prime is 125591679641. The reversal of 125591679617 is 716976195521.

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 125591679617 - 2⁶ = 125591679553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125591279617) 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, 307478 + ... + 587984.

It is an arithmetic number, because the mean of its divisors is an integer number (16241413200).

Almost surely, 2^125591679617 is an apocalyptic number.

It is an amenable number.

125591679617 is a deficient number, since it is larger than the sum of its proper divisors (4339625983).

125591679617 is a wasteful number, since it uses less digits than its factorization.

125591679617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295975.

The product of its digits is 7144200, while the sum is 59.

The spelling of 125591679617 in words is "one hundred twenty-five billion, five hundred ninety-one million, six hundred seventy-nine thousand, six hundred seventeen".