80409528550 has 96 divisors (see below), whose sum is σ = 169698201120. Its totient is φ = 28101427200.

The previous prime is 80409528523. The next prime is 80409528571. The reversal of 80409528550 is 5582590408.

It is a self number, because there is not a number n which added to its sum of digits gives 80409528550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17942310 + ... + 17946790.

It is an arithmetic number, because the mean of its divisors is an integer number (1767689595).

Almost surely, 2^80409528550 is an apocalyptic number.

80409528550 is an abundant number, since it is smaller than the sum of its proper divisors (89288672570).

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

80409528550 is a wasteful number, since it uses less digits than its factorization.

80409528550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978 (or 5973 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 80409528550 in words is "eighty billion, four hundred nine million, five hundred twenty-eight thousand, five hundred fifty".