867071966191 has 16 divisors (see below), whose sum is σ = 884284803360. Its totient is φ = 850018821120.

The previous prime is 867071966149. The next prime is 867071966213. The reversal of 867071966191 is 191669170768.

It is a de Polignac number, because none of the positive numbers 2^k-867071966191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867071966591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8052951 + ... + 8159911.

It is an arithmetic number, because the mean of its divisors is an integer number (55267800210).

Almost surely, 2^867071966191 is an apocalyptic number.

867071966191 is a deficient number, since it is larger than the sum of its proper divisors (17212837169).

867071966191 is a wasteful number, since it uses less digits than its factorization.

867071966191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107706.

The product of its (nonzero) digits is 6858432, while the sum is 61.

The spelling of 867071966191 in words is "eight hundred sixty-seven billion, seventy-one million, nine hundred sixty-six thousand, one hundred ninety-one".