18017344946 has 8 divisors (see below), whose sum is σ = 27654529584. Its totient is φ = 8799168420.

The previous prime is 18017344927. The next prime is 18017344949. The reversal of 18017344946 is 64944371081.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18017344946.

It is not an unprimeable number, because it can be changed into a prime (18017344949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104751920 + ... + 104752091.

It is an arithmetic number, because the mean of its divisors is an integer number (3456816198).

Almost surely, 2^18017344946 is an apocalyptic number.

18017344946 is a deficient number, since it is larger than the sum of its proper divisors (9637184638).

18017344946 is a wasteful number, since it uses less digits than its factorization.

18017344946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209504056.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 18017344946 in words is "eighteen billion, seventeen million, three hundred forty-four thousand, nine hundred forty-six".