18053019613 has 16 divisors (see below), whose sum is σ = 19736136000. Its totient is φ = 16453590912.

The previous prime is 18053019577. The next prime is 18053019637. The reversal of 18053019613 is 31691035081.

It is not a de Polignac number, because 18053019613 - 2²⁹ = 17516148701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18053016613) 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, 81703 + ... + 206836.

It is an arithmetic number, because the mean of its divisors is an integer number (1233508500).

Almost surely, 2^18053019613 is an apocalyptic number.

It is an amenable number.

18053019613 is a deficient number, since it is larger than the sum of its proper divisors (1683116387).

18053019613 is a wasteful number, since it uses less digits than its factorization.

18053019613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288684.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 18053019613 in words is "eighteen billion, fifty-three million, nineteen thousand, six hundred thirteen".