868210650646 has 8 divisors (see below), whose sum is σ = 1323665418384. Its totient is φ = 426988844520.

The previous prime is 868210650641. The next prime is 868210650647. The reversal of 868210650646 is 646056012868.

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

It is a junction number, because it is equal to n+sod(n) for n = 868210650593 and 868210650602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868210650641) 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, 3558240250 + ... + 3558240493.

It is an arithmetic number, because the mean of its divisors is an integer number (165458177298).

Almost surely, 2^868210650646 is an apocalyptic number.

868210650646 is a deficient number, since it is larger than the sum of its proper divisors (455454767738).

868210650646 is a wasteful number, since it uses less digits than its factorization.

868210650646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116480806.

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 868210650646 in words is "eight hundred sixty-eight billion, two hundred ten million, six hundred fifty thousand, six hundred forty-six".