860840994194 has 4 divisors (see below), whose sum is σ = 1291261491294. Its totient is φ = 430420497096.

The previous prime is 860840994187. The next prime is 860840994239. The reversal of 860840994194 is 491499048068.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 853434154225 + 7406839969 = 923815^2 + 86063^2 .

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 as a sum of consecutive naturals, namely, 215210248547 + ... + 215210248550.

Almost surely, 2^860840994194 is an apocalyptic number.

860840994194 is a deficient number, since it is larger than the sum of its proper divisors (430420497100).

860840994194 is a wasteful number, since it uses less digits than its factorization.

860840994194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430420497099.

The product of its (nonzero) digits is 17915904, while the sum is 62.

The spelling of 860840994194 in words is "eight hundred sixty billion, eight hundred forty million, nine hundred ninety-four thousand, one hundred ninety-four".