1328715064 has 16 divisors (see below), whose sum is σ = 2491734600. Its totient is φ = 664252512.

The previous prime is 1328715043. The next prime is 1328715067. The reversal of 1328715064 is 4605178231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328715067) 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, 77202 + ... + 92830.

Almost surely, 2^1328715064 is an apocalyptic number.

It is an amenable number.

1328715064 is a deficient number, since it is larger than the sum of its proper divisors (1163019536).

1328715064 is a wasteful number, since it uses less digits than its factorization.

1328715064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26262 (or 26258 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1328715064 is about 36451.5440550877. The cubic root of 1328715064 is about 1099.3701805042.

The spelling of 1328715064 in words is "one billion, three hundred twenty-eight million, seven hundred fifteen thousand, sixty-four".