28315824636 has 48 divisors (see below), whose sum is σ = 72086491008. Its totient is φ = 8579380800.

The previous prime is 28315824619. The next prime is 28315824671. The reversal of 28315824636 is 63642851382.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1872546 + ... + 1887606.

It is an arithmetic number, because the mean of its divisors is an integer number (1501801896).

Almost surely, 2^28315824636 is an apocalyptic number.

It is an amenable number.

28315824636 is an abundant number, since it is smaller than the sum of its proper divisors (43770666372).

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

28315824636 is a wasteful number, since it uses less digits than its factorization.

28315824636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29322 (or 29320 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The spelling of 28315824636 in words is "twenty-eight billion, three hundred fifteen million, eight hundred twenty-four thousand, six hundred thirty-six".