18456020107 has 8 divisors (see below), whose sum is σ = 21093518336. Its totient is φ = 15818752872.

The previous prime is 18456020059. The next prime is 18456020179. The reversal of 18456020107 is 70102065481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18456020107 - 2¹⁵ = 18455987339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18456020507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177208 + ... + 261370.

It is an arithmetic number, because the mean of its divisors is an integer number (2636689792).

Almost surely, 2^18456020107 is an apocalyptic number.

18456020107 is a deficient number, since it is larger than the sum of its proper divisors (2637498229).

18456020107 is an equidigital number, since it uses as much as digits as its factorization.

18456020107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115497.

The product of its (nonzero) digits is 13440, while the sum is 34.

Adding to 18456020107 its reverse (70102065481), we get a palindrome (88558085588).

The spelling of 18456020107 in words is "eighteen billion, four hundred fifty-six million, twenty thousand, one hundred seven".