18483622897 has 2 divisors, whose sum is σ = 18483622898. Its totient is φ = 18483622896.

The previous prime is 18483622889. The next prime is 18483622901. The reversal of 18483622897 is 79822638481.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17146331136 + 1337291761 = 130944^2 + 36569^2 .

It is a cyclic number.

It is not a de Polignac number, because 18483622897 - 2³ = 18483622889 is a prime.

It is not a weakly prime, because it can be changed into another prime (18483622697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9241811448 + 9241811449.

It is an arithmetic number, because the mean of its divisors is an integer number (9241811449).

Almost surely, 2^18483622897 is an apocalyptic number.

It is an amenable number.

18483622897 is a deficient number, since it is larger than the sum of its proper divisors (1).

18483622897 is an equidigital number, since it uses as much as digits as its factorization.

18483622897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9289728, while the sum is 58.

The spelling of 18483622897 in words is "eighteen billion, four hundred eighty-three million, six hundred twenty-two thousand, eight hundred ninety-seven".