867868845 has 16 divisors (see below), whose sum is σ = 1389104640. Its totient is φ = 462691904.

The previous prime is 867868829. The next prime is 867868891. The reversal of 867868845 is 548868768.

It is a cyclic number.

It is not a de Polignac number, because 867868845 - 2⁴ = 867868829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38371 + ... + 56639.

It is an arithmetic number, because the mean of its divisors is an integer number (86819040).

Almost surely, 2^867868845 is an apocalyptic number.

It is an amenable number.

867868845 is a deficient number, since it is larger than the sum of its proper divisors (521235795).

867868845 is a wasteful number, since it uses less digits than its factorization.

867868845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21444.

The product of its digits is 20643840, while the sum is 60.

The square root of 867868845 is about 29459.6137958392. The cubic root of 867868845 is about 953.8601368826.

The spelling of 867868845 in words is "eight hundred sixty-seven million, eight hundred sixty-eight thousand, eight hundred forty-five".