18206417842 has 16 divisors (see below), whose sum is σ = 28812484800. Its totient is φ = 8604439920.

The previous prime is 18206417833. The next prime is 18206417843. The reversal of 18206417842 is 24871460281.

It is not an unprimeable number, because it can be changed into a prime (18206417843) 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, 529009 + ... + 562372.

It is an arithmetic number, because the mean of its divisors is an integer number (1800780300).

Almost surely, 2^18206417842 is an apocalyptic number.

18206417842 is a deficient number, since it is larger than the sum of its proper divisors (10606066958).

18206417842 is a wasteful number, since it uses less digits than its factorization.

18206417842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091841.

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 18206417842 in words is "eighteen billion, two hundred six million, four hundred seventeen thousand, eight hundred forty-two".