1804721042828 has 48 divisors (see below), whose sum is σ = 3462525166464. Its totient is φ = 816248864640.

The previous prime is 1804721042801. The next prime is 1804721042833. The reversal of 1804721042828 is 8282401274081.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17798000 + ... + 17899112.

It is an arithmetic number, because the mean of its divisors is an integer number (72135940968).

Almost surely, 2^{1804721042828} is an apocalyptic number.

It is an amenable number.

1804721042828 is a deficient number, since it is larger than the sum of its proper divisors (1657804123636).

1804721042828 is a wasteful number, since it uses less digits than its factorization.

1804721042828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103142 (or 103140 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 47.

The spelling of 1804721042828 in words is "one trillion, eight hundred four billion, seven hundred twenty-one million, forty-two thousand, eight hundred twenty-eight".