18405078106 has 8 divisors (see below), whose sum is σ = 27610220160. Its totient is φ = 9201671388.

The previous prime is 18405078103. The next prime is 18405078121. The reversal of 18405078106 is 60187050481.

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

It is not an unprimeable number, because it can be changed into a prime (18405078103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406986 + ... + 449941.

It is an arithmetic number, because the mean of its divisors is an integer number (3451277520).

Almost surely, 2^18405078106 is an apocalyptic number.

18405078106 is a deficient number, since it is larger than the sum of its proper divisors (9205142054).

18405078106 is a wasteful number, since it uses less digits than its factorization.

18405078106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867668.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 18405078106 in words is "eighteen billion, four hundred five million, seventy-eight thousand, one hundred six".