840138062195 has 8 divisors (see below), whose sum is σ = 1008201129936. Its totient is φ = 672086812896.

The previous prime is 840138062191. The next prime is 840138062263. The reversal of 840138062195 is 591260831048.

It is a happy number.

840138062195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 840138062195 - 2² = 840138062191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (840138062191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2797457 + ... + 3083186.

It is an arithmetic number, because the mean of its divisors is an integer number (126025141242).

Almost surely, 2^840138062195 is an apocalyptic number.

840138062195 is a deficient number, since it is larger than the sum of its proper divisors (168063067741).

840138062195 is a wasteful number, since it uses less digits than its factorization.

840138062195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909221.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 840138062195 in words is "eight hundred forty billion, one hundred thirty-eight million, sixty-two thousand, one hundred ninety-five".