18809322773 has 8 divisors (see below), whose sum is σ = 19910431200. Its totient is φ = 17738381808.

The previous prime is 18809322739. The next prime is 18809322781. The reversal of 18809322773 is 37722390881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18809322773 - 2¹² = 18809318677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18809322703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7540583 + ... + 7543076.

It is an arithmetic number, because the mean of its divisors is an integer number (2488803900).

Almost surely, 2^18809322773 is an apocalyptic number.

It is an amenable number.

18809322773 is a deficient number, since it is larger than the sum of its proper divisors (1101108427).

18809322773 is a wasteful number, since it uses less digits than its factorization.

18809322773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15083731.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 18809322773 in words is "eighteen billion, eight hundred nine million, three hundred twenty-two thousand, seven hundred seventy-three".