18098808673 has 4 divisors (see below), whose sum is σ = 19744154928. Its totient is φ = 16453462420.

The previous prime is 18098808659. The next prime is 18098808683. The reversal of 18098808673 is 37680889081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18098808673 - 2¹³ = 18098800481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18098808653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822673111 + ... + 822673132.

It is an arithmetic number, because the mean of its divisors is an integer number (4936038732).

Almost surely, 2^18098808673 is an apocalyptic number.

It is an amenable number.

18098808673 is a deficient number, since it is larger than the sum of its proper divisors (1645346255).

18098808673 is a wasteful number, since it uses less digits than its factorization.

18098808673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645346254.

The product of its (nonzero) digits is 4644864, while the sum is 58.

The spelling of 18098808673 in words is "eighteen billion, ninety-eight million, eight hundred eight thousand, six hundred seventy-three".