18272053263 has 12 divisors (see below), whose sum is σ = 25173987864. Its totient is φ = 11788419600.

The previous prime is 18272053259. The next prime is 18272053279. The reversal of 18272053263 is 36235027281.

It is not a de Polignac number, because 18272053263 - 2² = 18272053259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18272053363) 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 11 ways as a sum of consecutive naturals, for example, 3166048 + ... + 3171813.

It is an arithmetic number, because the mean of its divisors is an integer number (2097832322).

Almost surely, 2^18272053263 is an apocalyptic number.

18272053263 is a deficient number, since it is larger than the sum of its proper divisors (6901934601).

18272053263 is an equidigital number, since it uses as much as digits as its factorization.

18272053263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6337926 (or 6337895 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 18272053263 in words is "eighteen billion, two hundred seventy-two million, fifty-three thousand, two hundred sixty-three".