6787664453 has 2 divisors, whose sum is σ = 6787664454. Its totient is φ = 6787664452.

The previous prime is 6787664417. The next prime is 6787664483. The reversal of 6787664453 is 3544667876.

6787664453 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6779381569 + 8282884 = 82337^2 + 2878^2 .

It is a cyclic number.

It is not a de Polignac number, because 6787664453 - 2⁸ = 6787664197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6787664413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3393832226 + 3393832227.

It is an arithmetic number, because the mean of its divisors is an integer number (3393832227).

Almost surely, 2^6787664453 is an apocalyptic number.

It is an amenable number.

6787664453 is a deficient number, since it is larger than the sum of its proper divisors (1).

6787664453 is an equidigital number, since it uses as much as digits as its factorization.

6787664453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 56.

The square root of 6787664453 is about 82387.2833209106. The cubic root of 6787664453 is about 1893.3901856695.

The spelling of 6787664453 in words is "six billion, seven hundred eighty-seven million, six hundred sixty-four thousand, four hundred fifty-three".