10781365668 has 12 divisors (see below), whose sum is σ = 25156519920. Its totient is φ = 3593788552.

The previous prime is 10781365663. The next prime is 10781365697. The reversal of 10781365668 is 86656318701.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 10781365668.

It is not an unprimeable number, because it can be changed into a prime (10781365663) 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, 449223558 + ... + 449223581.

It is an arithmetic number, because the mean of its divisors is an integer number (2096376660).

Almost surely, 2^10781365668 is an apocalyptic number.

It is an amenable number.

10781365668 is an abundant number, since it is smaller than the sum of its proper divisors (14375154252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10781365668 is a wasteful number, since it uses less digits than its factorization.

10781365668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898447146 (or 898447144 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 10781365668 in words is "ten billion, seven hundred eighty-one million, three hundred sixty-five thousand, six hundred sixty-eight".