981296327117 has 4 divisors (see below), whose sum is σ = 981299900316. Its totient is φ = 981292753920.

The previous prime is 981296327087. The next prime is 981296327153. The reversal of 981296327117 is 711723692189.

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 401222163241 + 580074163876 = 633421^2 + 761626^2 .

It is a cyclic number.

It is not a de Polignac number, because 981296327117 - 2⁸ = 981296326861 is a prime.

It is a super-2 number, since 2×981296327117² (a number of 25 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 (981296327197) 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, 1336934 + ... + 1936487.

It is an arithmetic number, because the mean of its divisors is an integer number (245324975079).

Almost surely, 2^981296327117 is an apocalyptic number.

It is an amenable number.

981296327117 is a deficient number, since it is larger than the sum of its proper divisors (3573199).

981296327117 is a wasteful number, since it uses less digits than its factorization.

981296327117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573198.

The product of its digits is 2286144, while the sum is 56.

It can be divided in two parts, 98129 and 6327117, that added together give a palindrome (6425246).

The spelling of 981296327117 in words is "nine hundred eighty-one billion, two hundred ninety-six million, three hundred twenty-seven thousand, one hundred seventeen".