18604406234305 has 16 divisors (see below), whose sum is σ = 22453259515200. Its totient is φ = 14798383532352.

The previous prime is 18604406234303. The next prime is 18604406234341. The reversal of 18604406234305 is 50343260440681.

It is a cyclic number.

It is not a de Polignac number, because 18604406234305 - 2¹ = 18604406234303 is a prime.

It is a super-2 number, since 2×18604406234305² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18604406234303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9967455 + ... + 11685844.

It is an arithmetic number, because the mean of its divisors is an integer number (1403328719700).

Almost surely, 2^{18604406234305} is an apocalyptic number.

It is an amenable number.

18604406234305 is a deficient number, since it is larger than the sum of its proper divisors (3848853280895).

18604406234305 is a wasteful number, since it uses less digits than its factorization.

18604406234305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21654288.

The product of its (nonzero) digits is 1658880, while the sum is 46.

Adding to 18604406234305 its reverse (50343260440681), we get a palindrome (68947666674986).

The spelling of 18604406234305 in words is "eighteen trillion, six hundred four billion, four hundred six million, two hundred thirty-four thousand, three hundred five".