864070064 has 40 divisors (see below), whose sum is σ = 1966822032. Its totient is φ = 362545920.

The previous prime is 864070061. The next prime is 864070127. The reversal of 864070064 is 460070468.

It is not an unprimeable number, because it can be changed into a prime (864070061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186539 + ... + 191114.

Almost surely, 2^864070064 is an apocalyptic number.

It is an amenable number.

864070064 is an abundant number, since it is smaller than the sum of its proper divisors (1102751968).

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

864070064 is a wasteful number, since it uses less digits than its factorization.

864070064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377685 (or 377679 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 864070064 is about 29395.0687020799. The cubic root of 864070064 is about 952.4663757784.

The spelling of 864070064 in words is "eight hundred sixty-four million, seventy thousand, sixty-four".