272717612618897 has 4 divisors (see below), whose sum is σ = 272725222600116. Its totient is φ = 272710002637680.

The previous prime is 272717612618861. The next prime is 272717612618917. The reversal of 272717612618897 is 798816216717272.

It is a Cunningham number, because it is equal to 16514164²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 78893050494976 + 193824562123921 = 8882176^2 + 13922089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272717612618897 is a prime.

It is a super-2 number, since 2×272717612618897² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272717602618897) 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, 3804936854 + ... + 3805008527.

It is an arithmetic number, because the mean of its divisors is an integer number (68181305650029).

Almost surely, 2^{272717612618897} is an apocalyptic number.

It is an amenable number.

272717612618897 is a deficient number, since it is larger than the sum of its proper divisors (7609981219).

272717612618897 is an equidigital number, since it uses as much as digits as its factorization.

272717612618897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7609981218.

The product of its digits is 398297088, while the sum is 74.

The spelling of 272717612618897 in words is "two hundred seventy-two trillion, seven hundred seventeen billion, six hundred twelve million, six hundred eighteen thousand, eight hundred ninety-seven".