28576002778250 has 16 divisors (see below), whose sum is σ = 53494277201352. Its totient is φ = 11430401111200.

The previous prime is 28576002778187. The next prime is 28576002778333. The reversal of 28576002778250 is 5287720067582.

It can be written as a sum of positive squares in 4 ways, for example, as 7213516268401 + 21362486509849 = 2685799^2 + 4621957^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28576002778250.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57152005307 + ... + 57152005806.

Almost surely, 2^{28576002778250} is an apocalyptic number.

28576002778250 is a deficient number, since it is larger than the sum of its proper divisors (24918274423102).

28576002778250 is a wasteful number, since it uses less digits than its factorization.

28576002778250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114304011130 (or 114304011120 counting only the distinct ones).

The product of its (nonzero) digits is 26342400, while the sum is 59.

The spelling of 28576002778250 in words is "twenty-eight trillion, five hundred seventy-six billion, two million, seven hundred seventy-eight thousand, two hundred fifty".