18899026053 has 4 divisors (see below), whose sum is σ = 25198701408. Its totient is φ = 12599350700.

The previous prime is 18899026051. The next prime is 18899026057. The reversal of 18899026053 is 35062099881.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18899026053 - 2¹ = 18899026051 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18899025987 and 18899026005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18899026051) 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 3 ways as a sum of consecutive naturals, for example, 3149837673 + ... + 3149837678.

It is an arithmetic number, because the mean of its divisors is an integer number (6299675352).

Almost surely, 2^18899026053 is an apocalyptic number.

It is an amenable number.

18899026053 is a deficient number, since it is larger than the sum of its proper divisors (6299675355).

18899026053 is an equidigital number, since it uses as much as digits as its factorization.

18899026053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6299675354.

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 18899026053 in words is "eighteen billion, eight hundred ninety-nine million, twenty-six thousand, fifty-three".