191323536992 has 48 divisors (see below), whose sum is σ = 430804497312. Its totient is φ = 81933603840.

The previous prime is 191323536931. The next prime is 191323536997. The reversal of 191323536992 is 299635323191.

191323536992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191323536997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27383 + ... + 619190.

It is an arithmetic number, because the mean of its divisors is an integer number (8975093694).

Almost surely, 2^191323536992 is an apocalyptic number.

It is an amenable number.

191323536992 is an abundant number, since it is smaller than the sum of its proper divisors (239480960320).

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

191323536992 is a wasteful number, since it uses less digits than its factorization.

191323536992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647911 (or 647903 counting only the distinct ones).

The product of its digits is 2361960, while the sum is 53.

The spelling of 191323536992 in words is "one hundred ninety-one billion, three hundred twenty-three million, five hundred thirty-six thousand, nine hundred ninety-two".