6909189969195 has 20 divisors (see below), whose sum is σ = 12385362760320. Its totient is φ = 3684901316688.

The previous prime is 6909189969161. The next prime is 6909189969233. The reversal of 6909189969195 is 5919699819096.

It is a happy number.

It is not a de Polignac number, because 6909189969195 - 2¹⁵ = 6909189936427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8529863755 + ... + 8529864564.

It is an arithmetic number, because the mean of its divisors is an integer number (619268138016).

Almost surely, 2^{6909189969195} is an apocalyptic number.

6909189969195 is a deficient number, since it is larger than the sum of its proper divisors (5476172791125).

6909189969195 is a wasteful number, since it uses less digits than its factorization.

6909189969195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17059728336 (or 17059728327 counting only the distinct ones).

The product of its (nonzero) digits is 765275040, while the sum is 81.

The spelling of 6909189969195 in words is "six trillion, nine hundred nine billion, one hundred eighty-nine million, nine hundred sixty-nine thousand, one hundred ninety-five".