191597460041992 has 32 divisors (see below), whose sum is σ = 369547096262400. Its totient is φ = 93071120464000.

The previous prime is 191597460041957. The next prime is 191597460041993. The reversal of 191597460041992 is 299140064795191.

It is not an unprimeable number, because it can be changed into a prime (191597460041993) 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, 1221968884 + ... + 1222125667.

It is an arithmetic number, because the mean of its divisors is an integer number (11548346758200).

Almost surely, 2^{191597460041992} is an apocalyptic number.

It is an amenable number.

191597460041992 is a deficient number, since it is larger than the sum of its proper divisors (177949636220408).

191597460041992 is a wasteful number, since it uses less digits than its factorization.

191597460041992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444094837 (or 2444094833 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 67.

The spelling of 191597460041992 in words is "one hundred ninety-one trillion, five hundred ninety-seven billion, four hundred sixty million, forty-one thousand, nine hundred ninety-two".