18053804643 has 16 divisors (see below), whose sum is σ = 27515448576. Its totient is φ = 10314626400.

The previous prime is 18053804627. The next prime is 18053804647. The reversal of 18053804643 is 34640835081.

It is not a de Polignac number, because 18053804643 - 2⁴ = 18053804627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18053804595 and 18053804604.

It is not an unprimeable number, because it can be changed into a prime (18053804647) 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, 49405 + ... + 196337.

It is an arithmetic number, because the mean of its divisors is an integer number (1719715536).

Almost surely, 2^18053804643 is an apocalyptic number.

18053804643 is a deficient number, since it is larger than the sum of its proper divisors (9461643933).

18053804643 is a wasteful number, since it uses less digits than its factorization.

18053804643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152794.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 18053804643 in words is "eighteen billion, fifty-three million, eight hundred four thousand, six hundred forty-three".