5145120728 has 16 divisors (see below), whose sum is σ = 10524110760. Its totient is φ = 2338691200.

The previous prime is 5145120671. The next prime is 5145120731. The reversal of 5145120728 is 8270215415.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29233553 + ... + 29233728.

Almost surely, 2^5145120728 is an apocalyptic number.

It is an amenable number.

5145120728 is an abundant number, since it is smaller than the sum of its proper divisors (5378990032).

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

5145120728 is a wasteful number, since it uses less digits than its factorization.

5145120728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58467298 (or 58467294 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 5145120728 is about 71729.4969172376. The cubic root of 5145120728 is about 1726.3619549122.

The spelling of 5145120728 in words is "five billion, one hundred forty-five million, one hundred twenty thousand, seven hundred twenty-eight".