10008940856 has 8 divisors (see below), whose sum is σ = 18766764120. Its totient is φ = 5004470424.

The previous prime is 10008940847. The next prime is 10008940913. The reversal of 10008940856 is 65804980001.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625558796 + ... + 625558811.

It is an arithmetic number, because the mean of its divisors is an integer number (2345845515).

Almost surely, 2^10008940856 is an apocalyptic number.

It is an amenable number.

10008940856 is a deficient number, since it is larger than the sum of its proper divisors (8757823264).

10008940856 is a wasteful number, since it uses less digits than its factorization.

10008940856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251117613 (or 1251117609 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 10008940856 in words is "ten billion, eight million, nine hundred forty thousand, eight hundred fifty-six".