865492189763 has 4 divisors (see below), whose sum is σ = 869976605448. Its totient is φ = 861007774080.

The previous prime is 865492189741. The next prime is 865492189789. The reversal of 865492189763 is 367981294568.

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

It is a cyclic number.

It is not a de Polignac number, because 865492189763 - 2¹⁴ = 865492173379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 865492189693 and 865492189702.

It is not an unprimeable number, because it can be changed into a prime (865492189703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2242207553 + ... + 2242207938.

It is an arithmetic number, because the mean of its divisors is an integer number (217494151362).

Almost surely, 2^865492189763 is an apocalyptic number.

865492189763 is a deficient number, since it is larger than the sum of its proper divisors (4484415685).

865492189763 is a wasteful number, since it uses less digits than its factorization.

865492189763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4484415684.

The product of its digits is 156764160, while the sum is 68.

The spelling of 865492189763 in words is "eight hundred sixty-five billion, four hundred ninety-two million, one hundred eighty-nine thousand, seven hundred sixty-three".