18894570202 has 16 divisors (see below), whose sum is σ = 30020336640. Its totient is φ = 8888210368.

The previous prime is 18894570199. The next prime is 18894570203. The reversal of 18894570202 is 20207549881.

It is not an unprimeable number, because it can be changed into a prime (18894570203) 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, 12052 + ... + 194767.

It is an arithmetic number, because the mean of its divisors is an integer number (1876271040).

Almost surely, 2^18894570202 is an apocalyptic number.

18894570202 is a deficient number, since it is larger than the sum of its proper divisors (11125766438).

18894570202 is a wasteful number, since it uses less digits than its factorization.

18894570202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209525.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 18894570202 in words is "eighteen billion, eight hundred ninety-four million, five hundred seventy thousand, two hundred two".