868044888406 has 16 divisors (see below), whose sum is σ = 1370983815360. Its totient is φ = 411063170760.

The previous prime is 868044888397. The next prime is 868044888409. The reversal of 868044888406 is 604888440868.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868044888409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3085300 + ... + 3354871.

It is an arithmetic number, because the mean of its divisors is an integer number (85686488460).

Almost surely, 2^868044888406 is an apocalyptic number.

868044888406 is a deficient number, since it is larger than the sum of its proper divisors (502938926954).

868044888406 is a wasteful number, since it uses less digits than its factorization.

868044888406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443739.

The product of its (nonzero) digits is 75497472, while the sum is 64.

The spelling of 868044888406 in words is "eight hundred sixty-eight billion, forty-four million, eight hundred eighty-eight thousand, four hundred six".