28338736624 has 20 divisors (see below), whose sum is σ = 59897784600. Its totient is φ = 12881243840.

The previous prime is 28338736603. The next prime is 28338736639. The reversal of 28338736624 is 42663783382.

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 3 ways as a sum of consecutive naturals, for example, 80507599 + ... + 80507950.

It is an arithmetic number, because the mean of its divisors is an integer number (2994889230).

Almost surely, 2^28338736624 is an apocalyptic number.

It is an amenable number.

28338736624 is an abundant number, since it is smaller than the sum of its proper divisors (31559047976).

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

28338736624 is a wasteful number, since it uses less digits than its factorization.

28338736624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161015568 (or 161015562 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 52.

The spelling of 28338736624 in words is "twenty-eight billion, three hundred thirty-eight million, seven hundred thirty-six thousand, six hundred twenty-four".