10215171868 has 36 divisors (see below), whose sum is σ = 19870295760. Its totient is φ = 4591069120.

The previous prime is 10215171847. The next prime is 10215171877. The reversal of 10215171868 is 86817151201.

10215171868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 10215171868.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75496 + ... + 161647.

It is an arithmetic number, because the mean of its divisors is an integer number (551952660).

Almost surely, 2^10215171868 is an apocalyptic number.

It is an amenable number.

10215171868 is a deficient number, since it is larger than the sum of its proper divisors (9655123892).

10215171868 is a wasteful number, since it uses less digits than its factorization.

10215171868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237258 (or 237245 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 40.

The spelling of 10215171868 in words is "ten billion, two hundred fifteen million, one hundred seventy-one thousand, eight hundred sixty-eight".