18662400005 has 8 divisors (see below), whose sum is σ = 22434661152. Its totient is φ = 14903399248.

The previous prime is 18662399983. The next prime is 18662400007. The reversal of 18662400005 is 50000426681.

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 18662400005 - 2²⁴ = 18645622789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18662400007) 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 7 ways as a sum of consecutive naturals, for example, 3311999 + ... + 3317628.

It is an arithmetic number, because the mean of its divisors is an integer number (2804332644).

Almost surely, 2^18662400005 is an apocalyptic number.

It is an amenable number.

18662400005 is a deficient number, since it is larger than the sum of its proper divisors (3772261147).

18662400005 is an equidigital number, since it uses as much as digits as its factorization.

18662400005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6630195.

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 18662400005 its reverse (50000426681), we get a palindrome (68662826686).

The spelling of 18662400005 in words is "eighteen billion, six hundred sixty-two million, four hundred thousand, five".