2666426299 has 4 divisors (see below), whose sum is σ = 2683410064. Its totient is φ = 2649442536.

The previous prime is 2666426293. The next prime is 2666426359. The reversal of 2666426299 is 9926246662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9926246662 = 2 ⋅4963123331.

It is a cyclic number.

It is not a de Polignac number, because 2666426299 - 2³ = 2666426291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2666426291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8491647 + ... + 8491960.

It is an arithmetic number, because the mean of its divisors is an integer number (670852516).

Almost surely, 2^2666426299 is an apocalyptic number.

2666426299 is a deficient number, since it is larger than the sum of its proper divisors (16983765).

2666426299 is a wasteful number, since it uses less digits than its factorization.

2666426299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16983764.

The product of its digits is 3359232, while the sum is 52.

The square root of 2666426299 is about 51637.4505470594. The cubic root of 2666426299 is about 1386.6808820414.

The spelling of 2666426299 in words is "two billion, six hundred sixty-six million, four hundred twenty-six thousand, two hundred ninety-nine".