1528712804550 has 48 divisors (see below), whose sum is σ = 3796380208080. Its totient is φ = 407100570240.

The previous prime is 1528712804533. The next prime is 1528712804609. The reversal of 1528712804550 is 554082178251.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1528712804550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6841905 + ... + 7061804.

It is an arithmetic number, because the mean of its divisors is an integer number (79091254335).

Almost surely, 2^{1528712804550} is an apocalyptic number.

1528712804550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1528712804550 is an abundant number, since it is smaller than the sum of its proper divisors (2267667403530).

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

1528712804550 is a wasteful number, since it uses less digits than its factorization.

1528712804550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13904457 (or 13904452 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 48.

The spelling of 1528712804550 in words is "one trillion, five hundred twenty-eight billion, seven hundred twelve million, eight hundred four thousand, five hundred fifty".