18053380523 has 4 divisors (see below), whose sum is σ = 18128917920. Its totient is φ = 17977843128.

The previous prime is 18053380507. The next prime is 18053380529. The reversal of 18053380523 is 32508335081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18053380523 - 2⁴ = 18053380507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18053380529) 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, 37768340 + ... + 37768817.

It is an arithmetic number, because the mean of its divisors is an integer number (4532229480).

Almost surely, 2^18053380523 is an apocalyptic number.

18053380523 is a deficient number, since it is larger than the sum of its proper divisors (75537397).

18053380523 is an equidigital number, since it uses as much as digits as its factorization.

18053380523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75537396.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 18053380523 in words is "eighteen billion, fifty-three million, three hundred eighty thousand, five hundred twenty-three".