18284196577 has 2 divisors, whose sum is σ = 18284196578. Its totient is φ = 18284196576.

The previous prime is 18284196571. The next prime is 18284196613. The reversal of 18284196577 is 77569148281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18283366656 + 829921 = 135216^2 + 911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18284196577 is a prime.

It is not a weakly prime, because it can be changed into another prime (18284196571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9142098288 + 9142098289.

It is an arithmetic number, because the mean of its divisors is an integer number (9142098289).

Almost surely, 2^18284196577 is an apocalyptic number.

It is an amenable number.

18284196577 is a deficient number, since it is larger than the sum of its proper divisors (1).

18284196577 is an equidigital number, since it uses as much as digits as its factorization.

18284196577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 58.

The spelling of 18284196577 in words is "eighteen billion, two hundred eighty-four million, one hundred ninety-six thousand, five hundred seventy-seven".