28525284960705 has 48 divisors (see below), whose sum is σ = 56379386765520. Its totient is φ = 13217145606144.

The previous prime is 28525284960649. The next prime is 28525284960709. The reversal of 28525284960705 is 50706948252582.

It is a happy number.

28525284960705 is a `hidden beast` number, since 2 + 8 + 5 + 2 + 528 + 49 + 60 + 7 + 0 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1328569748496 + 27196715212209 = 1152636^2 + 5215047^2 .

It is not a de Polignac number, because 28525284960705 - 2²⁹ = 28524748089793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28525284960709) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1434142140 + ... + 1434162029.

It is an arithmetic number, because the mean of its divisors is an integer number (1174570557615).

Almost surely, 2^{28525284960705} is an apocalyptic number.

It is an amenable number.

28525284960705 is a deficient number, since it is larger than the sum of its proper divisors (27854101804815).

28525284960705 is a wasteful number, since it uses less digits than its factorization.

28525284960705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868304210 (or 2868304207 counting only the distinct ones).

The product of its (nonzero) digits is 96768000, while the sum is 63.

The spelling of 28525284960705 in words is "twenty-eight trillion, five hundred twenty-five billion, two hundred eighty-four million, nine hundred sixty thousand, seven hundred five".