2117480191 has 2 divisors, whose sum is σ = 2117480192. Its totient is φ = 2117480190.

The previous prime is 2117480173. The next prime is 2117480231. The reversal of 2117480191 is 1910847112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2117480191 - 2⁵ = 2117480159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2117480111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058740095 + 1058740096.

It is an arithmetic number, because the mean of its divisors is an integer number (1058740096).

Almost surely, 2^2117480191 is an apocalyptic number.

2117480191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117480191 is an equidigital number, since it uses as much as digits as its factorization.

2117480191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 2117480191 is about 46016.0862199297. The cubic root of 2117480191 is about 1284.1224895115.

The spelling of 2117480191 in words is "two billion, one hundred seventeen million, four hundred eighty thousand, one hundred ninety-one".