4380806521828 has 24 divisors (see below), whose sum is σ = 8855320136544. Its totient is φ = 1874141827200.

The previous prime is 4380806521813. The next prime is 4380806521907. The reversal of 4380806521828 is 8281256080834.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2928345858 + ... + 2928347353.

It is an arithmetic number, because the mean of its divisors is an integer number (368971672356).

Almost surely, 2^{4380806521828} is an apocalyptic number.

It is an amenable number.

4380806521828 is an abundant number, since it is smaller than the sum of its proper divisors (4474513614716).

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

4380806521828 is a wasteful number, since it uses less digits than its factorization.

4380806521828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5856693243 (or 5856693241 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 55.

The spelling of 4380806521828 in words is "four trillion, three hundred eighty billion, eight hundred six million, five hundred twenty-one thousand, eight hundred twenty-eight".