191944573368 has 64 divisors (see below), whose sum is σ = 496468224000. Its totient is φ = 61767818112.

The previous prime is 191944573367. The next prime is 191944573391. The reversal of 191944573368 is 863375449191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191944573367) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11048673 + ... + 11066031.

It is an arithmetic number, because the mean of its divisors is an integer number (7757316000).

Almost surely, 2^191944573368 is an apocalyptic number.

It is an amenable number.

191944573368 is an abundant number, since it is smaller than the sum of its proper divisors (304523650632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

191944573368 is a wasteful number, since it uses less digits than its factorization.

191944573368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33284 (or 33280 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The spelling of 191944573368 in words is "one hundred ninety-one billion, nine hundred forty-four million, five hundred seventy-three thousand, three hundred sixty-eight".