864186344853 has 8 divisors (see below), whose sum is σ = 1240882956768. Its totient is φ = 531806981424.

The previous prime is 864186344729. The next prime is 864186344881. The reversal of 864186344853 is 358443681468.

It is a happy number.

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

It is not a de Polignac number, because 864186344853 - 2⁹ = 864186344341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864186344893) 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, 11079312075 + ... + 11079312152.

It is an arithmetic number, because the mean of its divisors is an integer number (155110369596).

Almost surely, 2^864186344853 is an apocalyptic number.

It is an amenable number.

864186344853 is a deficient number, since it is larger than the sum of its proper divisors (376696611915).

864186344853 is a wasteful number, since it uses less digits than its factorization.

864186344853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22158624243.

The product of its digits is 53084160, while the sum is 60.

The spelling of 864186344853 in words is "eight hundred sixty-four billion, one hundred eighty-six million, three hundred forty-four thousand, eight hundred fifty-three".