8453297779 has 2 divisors, whose sum is σ = 8453297780. Its totient is φ = 8453297778.

The previous prime is 8453297773. The next prime is 8453297807. The reversal of 8453297779 is 9777923548.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8453297779 - 2⁹ = 8453297267 is a prime.

It is not a weakly prime, because it can be changed into another prime (8453297773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4226648889 + 4226648890.

It is an arithmetic number, because the mean of its divisors is an integer number (4226648890).

Almost surely, 2^8453297779 is an apocalyptic number.

8453297779 is a deficient number, since it is larger than the sum of its proper divisors (1).

8453297779 is an equidigital number, since it uses as much as digits as its factorization.

8453297779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26671680, while the sum is 61.

The square root of 8453297779 is about 91941.8173575006. The cubic root of 8453297779 is about 2037.0829912459.

The spelling of 8453297779 in words is "eight billion, four hundred fifty-three million, two hundred ninety-seven thousand, seven hundred seventy-nine".