6562662561779 has 2 divisors, whose sum is σ = 6562662561780. Its totient is φ = 6562662561778.

The previous prime is 6562662561751. The next prime is 6562662561781. The reversal of 6562662561779 is 9771652662656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6562662561779 - 2⁸ = 6562662561523 is a prime.

Together with 6562662561781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6562662561379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3281331280889 + 3281331280890.

It is an arithmetic number, because the mean of its divisors is an integer number (3281331280890).

Almost surely, 2^{6562662561779} is an apocalyptic number.

6562662561779 is a deficient number, since it is larger than the sum of its proper divisors (1).

6562662561779 is an equidigital number, since it uses as much as digits as its factorization.

6562662561779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 342921600, while the sum is 68.

The spelling of 6562662561779 in words is "six trillion, five hundred sixty-two billion, six hundred sixty-two million, five hundred sixty-one thousand, seven hundred seventy-nine".