18265543147 has 2 divisors, whose sum is σ = 18265543148. Its totient is φ = 18265543146.

The previous prime is 18265543129. The next prime is 18265543157. The reversal of 18265543147 is 74134556281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18265543147 - 2²⁷ = 18131325419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18265543097 and 18265543106.

It is not a weakly prime, because it can be changed into another prime (18265543157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9132771573 + 9132771574.

It is an arithmetic number, because the mean of its divisors is an integer number (9132771574).

Almost surely, 2^18265543147 is an apocalyptic number.

18265543147 is a deficient number, since it is larger than the sum of its proper divisors (1).

18265543147 is an equidigital number, since it uses as much as digits as its factorization.

18265543147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 46.

The spelling of 18265543147 in words is "eighteen billion, two hundred sixty-five million, five hundred forty-three thousand, one hundred forty-seven".