864862188386 has 16 divisors (see below), whose sum is σ = 1482638849664. Its totient is φ = 370650734784.

The previous prime is 864862188353. The next prime is 864862188529. The reversal of 864862188386 is 683881268468.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996371 + ... + 1649993.

It is an arithmetic number, because the mean of its divisors is an integer number (92664928104).

Almost surely, 2^864862188386 is an apocalyptic number.

864862188386 is a deficient number, since it is larger than the sum of its proper divisors (617776661278).

864862188386 is a wasteful number, since it uses less digits than its factorization.

864862188386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748145.

The product of its digits is 169869312, while the sum is 68.

The spelling of 864862188386 in words is "eight hundred sixty-four billion, eight hundred sixty-two million, one hundred eighty-eight thousand, three hundred eighty-six".