4511836728 has 160 divisors (see below), whose sum is σ = 14485442400. Its totient is φ = 1285279488.

The previous prime is 4511836727. The next prime is 4511836739. The reversal of 4511836728 is 8276381154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4511836727) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1763226 + ... + 1765782.

It is an arithmetic number, because the mean of its divisors is an integer number (90534015).

Almost surely, 2^4511836728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4511836728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7242721200).

4511836728 is an abundant number, since it is smaller than the sum of its proper divisors (9973605672).

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

4511836728 is a wasteful number, since it uses less digits than its factorization.

4511836728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971 (or 2958 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 4511836728 is about 67170.2071457279. The cubic root of 4511836728 is about 1652.4099131901.

The spelling of 4511836728 in words is "four billion, five hundred eleven million, eight hundred thirty-six thousand, seven hundred twenty-eight".