18291829201 has 4 divisors (see below), whose sum is σ = 19367819172. Its totient is φ = 17215839232.

The previous prime is 18291829163. The next prime is 18291829253. The reversal of 18291829201 is 10292819281.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16230760000 + 2061069201 = 127400^2 + 45399^2 .

It is a cyclic number.

It is not a de Polignac number, because 18291829201 - 2⁹ = 18291828689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18291829261) 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, 537994960 + ... + 537994993.

It is an arithmetic number, because the mean of its divisors is an integer number (4841954793).

Almost surely, 2^18291829201 is an apocalyptic number.

It is an amenable number.

18291829201 is a deficient number, since it is larger than the sum of its proper divisors (1075989971).

18291829201 is a wasteful number, since it uses less digits than its factorization.

18291829201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075989970.

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 18291829201 in words is "eighteen billion, two hundred ninety-one million, eight hundred twenty-nine thousand, two hundred one".