18474730273 has 8 divisors (see below), whose sum is σ = 18591425216. Its totient is φ = 18358196400.

The previous prime is 18474730247. The next prime is 18474730277. The reversal of 18474730273 is 37203747481.

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 18474730273 - 2⁹ = 18474729761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18474730277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194140 + ... + 273202.

It is an arithmetic number, because the mean of its divisors is an integer number (2323928152).

Almost surely, 2^18474730273 is an apocalyptic number.

It is an amenable number.

18474730273 is a deficient number, since it is larger than the sum of its proper divisors (116694943).

18474730273 is a wasteful number, since it uses less digits than its factorization.

18474730273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80535.

The product of its (nonzero) digits is 790272, while the sum is 46.

The spelling of 18474730273 in words is "eighteen billion, four hundred seventy-four million, seven hundred thirty thousand, two hundred seventy-three".