18302270253 has 16 divisors (see below), whose sum is σ = 24724174080. Its totient is φ = 12041093376.

The previous prime is 18302270221. The next prime is 18302270279. The reversal of 18302270253 is 35207220381.

It is not a de Polignac number, because 18302270253 - 2⁵ = 18302270221 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18302270293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488401 + ... + 524537.

It is an arithmetic number, because the mean of its divisors is an integer number (1545260880).

Almost surely, 2^18302270253 is an apocalyptic number.

It is an amenable number.

18302270253 is a deficient number, since it is larger than the sum of its proper divisors (6421903827).

18302270253 is a wasteful number, since it uses less digits than its factorization.

18302270253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38356.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 18302270253 in words is "eighteen billion, three hundred two million, two hundred seventy thousand, two hundred fifty-three".