18463123401 has 4 divisors (see below), whose sum is σ = 24617497872. Its totient is φ = 12308748932.

The previous prime is 18463123387. The next prime is 18463123429. The reversal of 18463123401 is 10432136481.

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 a cyclic number.

It is not a de Polignac number, because 18463123401 - 2⁶ = 18463123337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18463123501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3077187231 + ... + 3077187236.

It is an arithmetic number, because the mean of its divisors is an integer number (6154374468).

Almost surely, 2^18463123401 is an apocalyptic number.

It is an amenable number.

18463123401 is a deficient number, since it is larger than the sum of its proper divisors (6154374471).

18463123401 is an equidigital number, since it uses as much as digits as its factorization.

18463123401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6154374470.

The product of its (nonzero) digits is 13824, while the sum is 33.

Adding to 18463123401 its reverse (10432136481), we get a palindrome (28895259882).

The spelling of 18463123401 in words is "eighteen billion, four hundred sixty-three million, one hundred twenty-three thousand, four hundred one".