528777528778 has 16 divisors (see below), whose sum is σ = 818770245120. Its totient is φ = 255854487600.

The previous prime is 528777528749. The next prime is 528777528847. The reversal of 528777528778 is 877825777825.

It is a self number, because there is not a number n which added to its sum of digits gives 528777528778.

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, 4853988 + ... + 4961728.

It is an arithmetic number, because the mean of its divisors is an integer number (51173140320).

Almost surely, 2^528777528778 is an apocalyptic number.

528777528778 is a deficient number, since it is larger than the sum of its proper divisors (289992716342).

528777528778 is a wasteful number, since it uses less digits than its factorization.

528777528778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186933.

The product of its digits is 860518400, while the sum is 73.

The spelling of 528777528778 in words is "five hundred twenty-eight billion, seven hundred seventy-seven million, five hundred twenty-eight thousand, seven hundred seventy-eight".