2667522643 has 2 divisors, whose sum is σ = 2667522644. Its totient is φ = 2667522642.

The previous prime is 2667522577. The next prime is 2667522653. The reversal of 2667522643 is 3462257662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2667522643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2667522643.

It is not a weakly prime, because it can be changed into another prime (2667522653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333761321 + 1333761322.

It is an arithmetic number, because the mean of its divisors is an integer number (1333761322).

Almost surely, 2^2667522643 is an apocalyptic number.

2667522643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2667522643 is an equidigital number, since it uses as much as digits as its factorization.

2667522643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 43.

The square root of 2667522643 is about 51648.0652396583. The cubic root of 2667522643 is about 1386.8709080387.

The spelling of 2667522643 in words is "two billion, six hundred sixty-seven million, five hundred twenty-two thousand, six hundred forty-three".