804558538503 has 80 divisors (see below), whose sum is σ = 1270604544000. Its totient is φ = 505948068288.

The previous prime is 804558538489. The next prime is 804558538559. The reversal of 804558538503 is 305835855408.

It is a happy number.

804558538503 is a `hidden beast` number, since 8 + 0 + 4 + 5 + 58 + 538 + 50 + 3 = 666.

It is not a de Polignac number, because 804558538503 - 2¹³ = 804558530311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 804558538503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804558538103) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 457394538 + ... + 457396296.

It is an arithmetic number, because the mean of its divisors is an integer number (15882556800).

Almost surely, 2^804558538503 is an apocalyptic number.

804558538503 is a deficient number, since it is larger than the sum of its proper divisors (466046005497).

804558538503 is a wasteful number, since it uses less digits than its factorization.

804558538503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906 (or 2897 counting only the distinct ones).

The product of its (nonzero) digits is 11520000, while the sum is 54.

The spelling of 804558538503 in words is "eight hundred four billion, five hundred fifty-eight million, five hundred thirty-eight thousand, five hundred three".