2173328064 has 56 divisors (see below), whose sum is σ = 6389187120. Its totient is φ = 724442112.

The previous prime is 2173328057. The next prime is 2173328077. The reversal of 2173328064 is 4608233712.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627129 + ... + 630584.

Almost surely, 2^2173328064 is an apocalyptic number.

2173328064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2173328064 is an abundant number, since it is smaller than the sum of its proper divisors (4215859056).

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

2173328064 is a wasteful number, since it uses less digits than its factorization.

2173328064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257734 (or 1257718 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 2173328064 is about 46618.9667839175. The cubic root of 2173328064 is about 1295.3141089445.

The spelling of 2173328064 in words is "two billion, one hundred seventy-three million, three hundred twenty-eight thousand, sixty-four".