5145100728 has 64 divisors (see below), whose sum is σ = 13639104000. Its totient is φ = 1611812352.

The previous prime is 5145100699. The next prime is 5145100733. The reversal of 5145100728 is 8270015415.

It is a super-2 number, since 2×5145100728² = 52944123002532259968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284583 + ... + 302121.

It is an arithmetic number, because the mean of its divisors is an integer number (213111000).

Almost surely, 2^5145100728 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 5145100728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6819552000).

5145100728 is an abundant number, since it is smaller than the sum of its proper divisors (8494003272).

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

5145100728 is a wasteful number, since it uses less digits than its factorization.

5145100728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18284 (or 18280 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 5145100728 is about 71729.3575044417. The cubic root of 5145100728 is about 1726.3597180172.

The spelling of 5145100728 in words is "five billion, one hundred forty-five million, one hundred thousand, seven hundred twenty-eight".