190171967228 has 24 divisors (see below), whose sum is σ = 343562741760. Its totient is φ = 92011653360.

The previous prime is 190171967221. The next prime is 190171967231. The reversal of 190171967228 is 822769171091.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 190171967228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190171967221) 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, 1806713 + ... + 1909071.

It is an arithmetic number, because the mean of its divisors is an integer number (14315114240).

Almost surely, 2^190171967228 is an apocalyptic number.

It is an amenable number.

190171967228 is a deficient number, since it is larger than the sum of its proper divisors (153390774532).

190171967228 is a wasteful number, since it uses less digits than its factorization.

190171967228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117377 (or 117375 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 53.

The spelling of 190171967228 in words is "one hundred ninety billion, one hundred seventy-one million, nine hundred sixty-seven thousand, two hundred twenty-eight".