64328826812 has 12 divisors (see below), whose sum is σ = 119197532160. Its totient is φ = 30272389056.

The previous prime is 64328826811. The next prime is 64328826833. The reversal of 64328826812 is 21862882346.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64328826811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473006012 + ... + 473006147.

It is an arithmetic number, because the mean of its divisors is an integer number (9933127680).

Almost surely, 2^64328826812 is an apocalyptic number.

It is an amenable number.

64328826812 is a deficient number, since it is larger than the sum of its proper divisors (54868705348).

64328826812 is a wasteful number, since it uses less digits than its factorization.

64328826812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946012180 (or 946012178 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 50.

The spelling of 64328826812 in words is "sixty-four billion, three hundred twenty-eight million, eight hundred twenty-six thousand, eight hundred twelve".