863641691134 has 8 divisors (see below), whose sum is σ = 1295514849600. Its totient is φ = 431803407936.

The previous prime is 863641691119. The next prime is 863641691137. The reversal of 863641691134 is 431196146368.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863641691137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8656819 + ... + 8756014.

It is an arithmetic number, because the mean of its divisors is an integer number (161939356200).

Almost surely, 2^863641691134 is an apocalyptic number.

863641691134 is a deficient number, since it is larger than the sum of its proper divisors (431873158466).

863641691134 is a wasteful number, since it uses less digits than its factorization.

863641691134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17437634.

The product of its digits is 2239488, while the sum is 52.

The spelling of 863641691134 in words is "eight hundred sixty-three billion, six hundred forty-one million, six hundred ninety-one thousand, one hundred thirty-four".