2662240643 has 2 divisors, whose sum is σ = 2662240644. Its totient is φ = 2662240642.

The previous prime is 2662240631. The next prime is 2662240667. The reversal of 2662240643 is 3460422662.

2662240643 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 is a cyclic number.

It is not a de Polignac number, because 2662240643 - 2⁴ = 2662240627 is a prime.

It is not a weakly prime, because it can be changed into another prime (2662240673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331120321 + 1331120322.

It is an arithmetic number, because the mean of its divisors is an integer number (1331120322).

Almost surely, 2^2662240643 is an apocalyptic number.

2662240643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2662240643 is an equidigital number, since it uses as much as digits as its factorization.

2662240643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 2662240643 is about 51596.9053626281. The cubic root of 2662240643 is about 1385.9549154967.

The spelling of 2662240643 in words is "two billion, six hundred sixty-two million, two hundred forty thousand, six hundred forty-three".