191364140670 has 16 divisors (see below), whose sum is σ = 459273937680. Its totient is φ = 51030437504.

The previous prime is 191364140633. The next prime is 191364140687. The reversal of 191364140670 is 76041463191.

191364140670 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 an unprimeable number.

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, 3189402315 + ... + 3189402374.

It is an arithmetic number, because the mean of its divisors is an integer number (28704621105).

Almost surely, 2^191364140670 is an apocalyptic number.

191364140670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191364140670 is an abundant number, since it is smaller than the sum of its proper divisors (267909797010).

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

191364140670 is a wasteful number, since it uses less digits than its factorization.

191364140670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378804699.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 191364140670 in words is "one hundred ninety-one billion, three hundred sixty-four million, one hundred forty thousand, six hundred seventy".