18412423485 has 32 divisors (see below), whose sum is σ = 30163064448. Its totient is φ = 9585838080.

The previous prime is 18412423483. The next prime is 18412423489. The reversal of 18412423485 is 58432421481.

It is not a de Polignac number, because 18412423485 - 2¹ = 18412423483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18412423483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1200465 + ... + 1215705.

It is an arithmetic number, because the mean of its divisors is an integer number (942595764).

Almost surely, 2^18412423485 is an apocalyptic number.

18412423485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18412423485 is a deficient number, since it is larger than the sum of its proper divisors (11750640963).

18412423485 is a wasteful number, since it uses less digits than its factorization.

18412423485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17165.

The product of its digits is 245760, while the sum is 42.

The spelling of 18412423485 in words is "eighteen billion, four hundred twelve million, four hundred twenty-three thousand, four hundred eighty-five".