2642422643 has 16 divisors (see below), whose sum is σ = 3210679296. Its totient is φ = 2125574880.

The previous prime is 2642422631. The next prime is 2642422649. The reversal of 2642422643 is 3462242462.

It is a cyclic number.

It is not a de Polignac number, because 2642422643 - 2¹⁰ = 2642421619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2642422649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146303 + ... + 163368.

It is an arithmetic number, because the mean of its divisors is an integer number (200667456).

Almost surely, 2^2642422643 is an apocalyptic number.

2642422643 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2642422643 is a deficient number, since it is larger than the sum of its proper divisors (568256653).

2642422643 is a wasteful number, since it uses less digits than its factorization.

2642422643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309754.

The product of its digits is 110592, while the sum is 35.

The square root of 2642422643 is about 51404.5002212841. The cubic root of 2642422643 is about 1382.5072816091.

The spelling of 2642422643 in words is "two billion, six hundred forty-two million, four hundred twenty-two thousand, six hundred forty-three".