863651880862 has 8 divisors (see below), whose sum is σ = 1330490735496. Its totient is φ = 420154969032.

The previous prime is 863651880857. The next prime is 863651880901. The reversal of 863651880862 is 268088156368.

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

It is a self number, because there is not a number n which added to its sum of digits gives 863651880862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5835485608 + ... + 5835485755.

It is an arithmetic number, because the mean of its divisors is an integer number (166311341937).

Almost surely, 2^863651880862 is an apocalyptic number.

863651880862 is a deficient number, since it is larger than the sum of its proper divisors (466838854634).

863651880862 is a wasteful number, since it uses less digits than its factorization.

863651880862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11670971402.

The product of its (nonzero) digits is 26542080, while the sum is 61.

The spelling of 863651880862 in words is "eight hundred sixty-three billion, six hundred fifty-one million, eight hundred eighty thousand, eight hundred sixty-two".