2512270728 has 180 divisors, whose sum is σ = 7777988295. Its totient is φ = 757041120.

The previous prime is 2512270711. The next prime is 2512270741. The reversal of 2512270728 is 8270722152.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

2512270728 is a `hidden beast` number, since 2 + 512 + 2 + 70 + 72 + 8 = 666.

2512270728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1256135364 + 1256135364 = 35442^2 + 35442^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=35442.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2512270692 and 2512270701.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 14034943 + ... + 14035121.

Almost surely, 2^2512270728 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 2512270728

2512270728 is an abundant number, since it is smaller than the sum of its proper divisors (5265717567).

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

2512270728 is a wasteful number, since it uses less digits than its factorization.

2512270728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 2512270728 is about 50122.5570776272. The cubic root of 2512270728 is about 1359.4257105268.

The spelling of 2512270728 in words is "two billion, five hundred twelve million, two hundred seventy thousand, seven hundred twenty-eight".