190398565268 has 24 divisors (see below), whose sum is σ = 352843972992. Its totient is φ = 89587481984.

The previous prime is 190398565237. The next prime is 190398565297. The reversal of 190398565268 is 862565893091.

It is a super-2 number, since 2×190398565268² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190398565268.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344255 + ... + 706617.

It is an arithmetic number, because the mean of its divisors is an integer number (14701832208).

Almost surely, 2^190398565268 is an apocalyptic number.

It is an amenable number.

190398565268 is a deficient number, since it is larger than the sum of its proper divisors (162445407724).

190398565268 is a wasteful number, since it uses less digits than its factorization.

190398565268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370111 (or 370109 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 62.

The spelling of 190398565268 in words is "one hundred ninety billion, three hundred ninety-eight million, five hundred sixty-five thousand, two hundred sixty-eight".