18451411201 has 4 divisors (see below), whose sum is σ = 18711290304. Its totient is φ = 18191532100.

The previous prime is 18451411189. The next prime is 18451411213. The reversal of 18451411201 is 10211415481.

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 an interprime number because it is at equal distance from previous prime (18451411189) and next prime (18451411213).

It is a cyclic number.

It is not a de Polignac number, because 18451411201 - 2¹⁵ = 18451378433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18451411201.

It is not an unprimeable number, because it can be changed into a prime (18451411291) 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, 129939445 + ... + 129939586.

It is an arithmetic number, because the mean of its divisors is an integer number (4677822576).

Almost surely, 2^18451411201 is an apocalyptic number.

It is an amenable number.

18451411201 is a deficient number, since it is larger than the sum of its proper divisors (259879103).

18451411201 is an equidigital number, since it uses as much as digits as its factorization.

18451411201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259879102.

The product of its (nonzero) digits is 1280, while the sum is 28.

Adding to 18451411201 its reverse (10211415481), we get a palindrome (28662826682).

The spelling of 18451411201 in words is "eighteen billion, four hundred fifty-one million, four hundred eleven thousand, two hundred one".