2117775104 has 36 divisors (see below), whose sum is σ = 4249279776. Its totient is φ = 1053376512.

The previous prime is 2117775103. The next prime is 2117775109. The reversal of 2117775104 is 4015777112.

It is a super-2 number, since 2×2117775104² = 8969942782244421632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117775103) 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, 27977 + ... + 70839.

Almost surely, 2^2117775104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2117775104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2124639888).

2117775104 is an abundant number, since it is smaller than the sum of its proper divisors (2131504672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2117775104 is an equidigital number, since it uses as much as digits as its factorization.

2117775104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43072 (or 43058 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 35.

The square root of 2117775104 is about 46019.2905638494. The cubic root of 2117775104 is about 1284.1821023219.

The spelling of 2117775104 in words is "two billion, one hundred seventeen million, seven hundred seventy-five thousand, one hundred four".