191282509468 has 24 divisors (see below), whose sum is σ = 337599496080. Its totient is φ = 94826808960.

The previous prime is 191282509463. The next prime is 191282509493. The reversal of 191282509468 is 864905282191.

191282509468 is digitally balanced in base 2 and base 3, because in such bases 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 (191282509463) 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, 429930 + ... + 753262.

It is an arithmetic number, because the mean of its divisors is an integer number (14066645670).

Almost surely, 2^191282509468 is an apocalyptic number.

It is an amenable number.

191282509468 is a deficient number, since it is larger than the sum of its proper divisors (146316986612).

191282509468 is a wasteful number, since it uses less digits than its factorization.

191282509468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324597 (or 324595 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 191282509468 in words is "one hundred ninety-one billion, two hundred eighty-two million, five hundred nine thousand, four hundred sixty-eight".