677120664911 has 2 divisors, whose sum is σ = 677120664912. Its totient is φ = 677120664910.

The previous prime is 677120664881. The next prime is 677120664919. The reversal of 677120664911 is 119466021776.

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-677120664911 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 677120664911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677120664919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338560332455 + 338560332456.

It is an arithmetic number, because the mean of its divisors is an integer number (338560332456).

Almost surely, 2^677120664911 is an apocalyptic number.

677120664911 is a deficient number, since it is larger than the sum of its proper divisors (1).

677120664911 is an equidigital number, since it uses as much as digits as its factorization.

677120664911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 677120664911 in words is "six hundred seventy-seven billion, one hundred twenty million, six hundred sixty-four thousand, nine hundred eleven".