2868440641117 has 4 divisors (see below), whose sum is σ = 2868458149276. Its totient is φ = 2868423132960.

The previous prime is 2868440641111. The next prime is 2868440641139. The reversal of 2868440641117 is 7111460448682.

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 55746043236 + 2812694597881 = 236106^2 + 1677109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2868440641117 is a prime.

It is a super-2 number, since 2×2868440641117² (a number of 26 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 (2868440641111) 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, 8505984 + ... + 8836777.

It is an arithmetic number, because the mean of its divisors is an integer number (717114537319).

Almost surely, 2^{2868440641117} is an apocalyptic number.

It is an amenable number.

2868440641117 is a deficient number, since it is larger than the sum of its proper divisors (17508159).

2868440641117 is a wasteful number, since it uses less digits than its factorization.

2868440641117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17508158.

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 2868440641117 in words is "two trillion, eight hundred sixty-eight billion, four hundred forty million, six hundred forty-one thousand, one hundred seventeen".