2291418617 has 2 divisors, whose sum is σ = 2291418618. Its totient is φ = 2291418616.

The previous prime is 2291418553. The next prime is 2291418637. The reversal of 2291418617 is 7168141922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2289718201 + 1700416 = 47851^2 + 1304^2 .

It is a cyclic number.

It is not a de Polignac number, because 2291418617 - 2⁶ = 2291418553 is a prime.

It is a super-3 number, since 3×2291418617³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2291418637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145709308 + 1145709309.

It is an arithmetic number, because the mean of its divisors is an integer number (1145709309).

Almost surely, 2^2291418617 is an apocalyptic number.

It is an amenable number.

2291418617 is a deficient number, since it is larger than the sum of its proper divisors (1).

2291418617 is an equidigital number, since it uses as much as digits as its factorization.

2291418617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 41.

The square root of 2291418617 is about 47868.7645234343. The cubic root of 2291418617 is about 1318.3624123596.

The spelling of 2291418617 in words is "two billion, two hundred ninety-one million, four hundred eighteen thousand, six hundred seventeen".