79517725137101 has 8 divisors (see below), whose sum is σ = 84266050188600. Its totient is φ = 74903155720960.

The previous prime is 79517725137047. The next prime is 79517725137127. The reversal of 79517725137101 is 10173152771597.

It can be written as a sum of positive squares in 4 ways, for example, as 6637360900 + 79511087776201 = 81470^2 + 8916899^2 .

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 79517725137101 - 2²² = 79517720942797 is a prime.

It is a super-2 number, since 2×79517725137101² (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 (79517725137161) 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, 33438907616 + ... + 33438909993.

It is an arithmetic number, because the mean of its divisors is an integer number (10533256273575).

Almost surely, 2^{79517725137101} is an apocalyptic number.

It is an amenable number.

79517725137101 is a deficient number, since it is larger than the sum of its proper divisors (4748325051499).

79517725137101 is a wasteful number, since it uses less digits than its factorization.

79517725137101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66877817679.

The product of its (nonzero) digits is 3241350, while the sum is 56.

The spelling of 79517725137101 in words is "seventy-nine trillion, five hundred seventeen billion, seven hundred twenty-five million, one hundred thirty-seven thousand, one hundred one".