20117343882239 has 4 divisors (see below), whose sum is σ = 20117525062656. Its totient is φ = 20117162701824.

The previous prime is 20117343882227. The next prime is 20117343882247. The reversal of 20117343882239 is 93228834371102.

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

It is a cyclic number.

It is not a de Polignac number, because 20117343882239 - 2³⁶ = 20048624405503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20117343882739) 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, 90423554 + ... + 90645759.

It is an arithmetic number, because the mean of its divisors is an integer number (5029381265664).

Almost surely, 2^{20117343882239} is an apocalyptic number.

20117343882239 is a deficient number, since it is larger than the sum of its proper divisors (181180417).

20117343882239 is a wasteful number, since it uses less digits than its factorization.

20117343882239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181180416.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 20117343882239 in words is "twenty trillion, one hundred seventeen billion, three hundred forty-three million, eight hundred eighty-two thousand, two hundred thirty-nine".