192691208871 has 24 divisors (see below), whose sum is σ = 320200018944. Its totient is φ = 109380056400.

The previous prime is 192691208867. The next prime is 192691208909. The reversal of 192691208871 is 178802196291.

It is a happy number.

192691208871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 192691208871 - 2² = 192691208867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192691209871) 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 23 ways as a sum of consecutive naturals, for example, 10118271 + ... + 10137296.

It is an arithmetic number, because the mean of its divisors is an integer number (13341667456).

Almost surely, 2^192691208871 is an apocalyptic number.

192691208871 is a deficient number, since it is larger than the sum of its proper divisors (127508810073).

192691208871 is a wasteful number, since it uses less digits than its factorization.

192691208871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20255731 (or 20255728 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The spelling of 192691208871 in words is "one hundred ninety-two billion, six hundred ninety-one million, two hundred eight thousand, eight hundred seventy-one".