2266621493 has 2 divisors, whose sum is σ = 2266621494. Its totient is φ = 2266621492.

The previous prime is 2266621477. The next prime is 2266621613. The reversal of 2266621493 is 3941266622.

2266621493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1805145169 + 461476324 = 42487^2 + 21482^2 .

It is a cyclic number.

It is not a de Polignac number, because 2266621493 - 2⁴ = 2266621477 is a prime.

It is a super-3 number, since 3×2266621493³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2266621493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2266621453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1133310746 + 1133310747.

It is an arithmetic number, because the mean of its divisors is an integer number (1133310747).

Almost surely, 2^2266621493 is an apocalyptic number.

It is an amenable number.

2266621493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2266621493 is an equidigital number, since it uses as much as digits as its factorization.

2266621493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 41.

The square root of 2266621493 is about 47609.0484361954. The cubic root of 2266621493 is about 1313.5894976385.

The spelling of 2266621493 in words is "two billion, two hundred sixty-six million, six hundred twenty-one thousand, four hundred ninety-three".