8664867870 has 32 divisors (see below), whose sum is σ = 22018959648. Its totient is φ = 2174711808.

The previous prime is 8664867859. The next prime is 8664867923. The reversal of 8664867870 is 787684668.

It is a Curzon number.

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, 8494459 + ... + 8495478.

It is an arithmetic number, because the mean of its divisors is an integer number (688092489).

Almost surely, 2^8664867870 is an apocalyptic number.

8664867870 is an abundant number, since it is smaller than the sum of its proper divisors (13354091778).

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

8664867870 is a wasteful number, since it uses less digits than its factorization.

8664867870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16989964.

The product of its (nonzero) digits is 21676032, while the sum is 60.

The square root of 8664867870 is about 93085.2720359134. The cubic root of 8664867870 is about 2053.9379289419.

The spelling of 8664867870 in words is "eight billion, six hundred sixty-four million, eight hundred sixty-seven thousand, eight hundred seventy".