18404142663 has 8 divisors (see below), whose sum is σ = 24548789488. Its totient is φ = 12264462144.

The previous prime is 18404142623. The next prime is 18404142683. The reversal of 18404142663 is 36624140481.

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

It is not a de Polignac number, because 18404142663 - 2¹² = 18404138567 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 (18404142623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232920 + ... + 1247757.

It is an arithmetic number, because the mean of its divisors is an integer number (3068598686).

Almost surely, 2^18404142663 is an apocalyptic number.

18404142663 is a deficient number, since it is larger than the sum of its proper divisors (6144646825).

18404142663 is a wasteful number, since it uses less digits than its factorization.

18404142663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483153.

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 18404142663 in words is "eighteen billion, four hundred four million, one hundred forty-two thousand, six hundred sixty-three".