201794218172 has 24 divisors (see below), whose sum is σ = 354075601152. Its totient is φ = 100629975600.

The previous prime is 201794218169. The next prime is 201794218231. The reversal of 201794218172 is 271812497102.

201794218172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3921047 + ... + 3972177.

It is an arithmetic number, because the mean of its divisors is an integer number (14753150048).

Almost surely, 2^201794218172 is an apocalyptic number.

It is an amenable number.

201794218172 is a deficient number, since it is larger than the sum of its proper divisors (152281382980).

201794218172 is a wasteful number, since it uses less digits than its factorization.

201794218172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53729 (or 53727 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 44.

The spelling of 201794218172 in words is "two hundred one billion, seven hundred ninety-four million, two hundred eighteen thousand, one hundred seventy-two".