28573161804 has 72 divisors (see below), whose sum is σ = 81710935488. Its totient is φ = 8658530640.

The previous prime is 28573161781. The next prime is 28573161817. The reversal of 28573161804 is 40816137582.

28573161804 is a `hidden beast` number, since 28 + 5 + 7 + 3 + 1 + 618 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28573161804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1325502 + ... + 1346885.

It is an arithmetic number, because the mean of its divisors is an integer number (1134874104).

Almost surely, 2^28573161804 is an apocalyptic number.

It is an amenable number.

28573161804 is an abundant number, since it is smaller than the sum of its proper divisors (53137773684).

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

28573161804 is a wasteful number, since it uses less digits than its factorization.

28573161804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672417 (or 2672403 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 28573161804 in words is "twenty-eight billion, five hundred seventy-three million, one hundred sixty-one thousand, eight hundred four".