28554072850 has 12 divisors (see below), whose sum is σ = 53110575594. Its totient is φ = 11421629120.

The previous prime is 28554072847. The next prime is 28554072857. The reversal of 28554072850 is 5827045582.

It can be written as a sum of positive squares in 3 ways, for example, as 27596851129 + 957221721 = 166123^2 + 30939^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28554072850.

It is not an unprimeable number, because it can be changed into a prime (28554072857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 285540679 + ... + 285540778.

Almost surely, 2^28554072850 is an apocalyptic number.

28554072850 is a deficient number, since it is larger than the sum of its proper divisors (24556502744).

28554072850 is a wasteful number, since it uses less digits than its factorization.

28554072850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571081469 (or 571081464 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 46.

The spelling of 28554072850 in words is "twenty-eight billion, five hundred fifty-four million, seventy-two thousand, eight hundred fifty".