18523297457283 has 4 divisors (see below), whose sum is σ = 24697729943048. Its totient is φ = 12348864971520.

The previous prime is 18523297457281. The next prime is 18523297457303. The reversal of 18523297457283 is 38275479232581.

It is a happy number.

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

It is not a de Polignac number, because 18523297457283 - 2¹ = 18523297457281 is a prime.

It is a super-2 number, since 2×18523297457283² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18523297457281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3087216242878 + ... + 3087216242883.

It is an arithmetic number, because the mean of its divisors is an integer number (6174432485762).

Almost surely, 2^{18523297457283} is an apocalyptic number.

18523297457283 is a deficient number, since it is larger than the sum of its proper divisors (6174432485765).

18523297457283 is an equidigital number, since it uses as much as digits as its factorization.

18523297457283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6174432485764.

The product of its digits is 203212800, while the sum is 66.

The spelling of 18523297457283 in words is "eighteen trillion, five hundred twenty-three billion, two hundred ninety-seven million, four hundred fifty-seven thousand, two hundred eighty-three".