2218752373117 has 4 divisors (see below), whose sum is σ = 2535716997856. Its totient is φ = 1901787748380.

The previous prime is 2218752373073. The next prime is 2218752373121. The reversal of 2218752373117 is 7113732578122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2218752373117 - 2⁷ = 2218752372989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218752371117) 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, 158482312359 + ... + 158482312372.

It is an arithmetic number, because the mean of its divisors is an integer number (633929249464).

Almost surely, 2^{2218752373117} is an apocalyptic number.

It is an amenable number.

2218752373117 is a deficient number, since it is larger than the sum of its proper divisors (316964624739).

2218752373117 is an equidigital number, since it uses as much as digits as its factorization.

2218752373117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316964624738.

The product of its digits is 987840, while the sum is 49.

The spelling of 2218752373117 in words is "two trillion, two hundred eighteen billion, seven hundred fifty-two million, three hundred seventy-three thousand, one hundred seventeen".