863412192861 has 8 divisors (see below), whose sum is σ = 1151220645984. Its totient is φ = 575605934160.

The previous prime is 863412192859. The next prime is 863412192947. The reversal of 863412192861 is 168291214368.

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

It is not a de Polignac number, because 863412192861 - 2¹ = 863412192859 is a prime.

It is a super-2 number, since 2×863412192861² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863412192821) 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 7 ways as a sum of consecutive naturals, for example, 969966 + ... + 1633296.

It is an arithmetic number, because the mean of its divisors is an integer number (143902580748).

Almost surely, 2^863412192861 is an apocalyptic number.

It is an amenable number.

863412192861 is a deficient number, since it is larger than the sum of its proper divisors (287808453123).

863412192861 is a wasteful number, since it uses less digits than its factorization.

863412192861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097211.

The product of its digits is 995328, while the sum is 51.

The spelling of 863412192861 in words is "eight hundred sixty-three billion, four hundred twelve million, one hundred ninety-two thousand, eight hundred sixty-one".