2643220299 has 24 divisors (see below), whose sum is σ = 3780275200. Its totient is φ = 1642333824.

The previous prime is 2643220289. The next prime is 2643220303. The reversal of 2643220299 is 9920223462.

It is a happy number.

It is not a de Polignac number, because 2643220299 - 2⁸ = 2643220043 is a prime.

It is a super-2 number, since 2×2643220299² = 13973227098091298802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643220249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74502 + ... + 104100.

Almost surely, 2^2643220299 is an apocalyptic number.

2643220299 is a deficient number, since it is larger than the sum of its proper divisors (1137054901).

2643220299 is a wasteful number, since it uses less digits than its factorization.

2643220299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29739 (or 29722 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 2643220299 is about 51412.2582561786. The cubic root of 2643220299 is about 1382.6463779907.

The spelling of 2643220299 in words is "two billion, six hundred forty-three million, two hundred twenty thousand, two hundred ninety-nine".