2605751028 has 18 divisors (see below), whose sum is σ = 6586759634. Its totient is φ = 868583664.

The previous prime is 2605751021. The next prime is 2605751033. The reversal of 2605751028 is 8201575062.

It is a happy number.

2605751028 is a `hidden beast` number, since 2 + 60 + 575 + 1 + 0 + 28 = 666.

2605751028 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., 2602224144 + 3526884 = 51012^2 + 1878^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 72381973 = 2605751028 / (2 + 6 + 0 + 5 + 7 + 5 + 1 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 2605750983 and 2605751001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605751021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36190951 + ... + 36191022.

Almost surely, 2^2605751028 is an apocalyptic number.

It is an amenable number.

2605751028 is an abundant number, since it is smaller than the sum of its proper divisors (3981008606).

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

2605751028 is a wasteful number, since it uses less digits than its factorization.

2605751028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72381983 (or 72381978 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 2605751028 is about 51046.5574549352. The cubic root of 2605751028 is about 1376.0819742548.

The spelling of 2605751028 in words is "two billion, six hundred five million, seven hundred fifty-one thousand, twenty-eight".