28330332508 has 12 divisors (see below), whose sum is σ = 52187454760. Its totient is φ = 13419631152.

The previous prime is 28330332487. The next prime is 28330332521. The reversal of 28330332508 is 80523303382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186383691 + ... + 186383842.

Almost surely, 2^28330332508 is an apocalyptic number.

It is an amenable number.

28330332508 is a deficient number, since it is larger than the sum of its proper divisors (23857122252).

28330332508 is a wasteful number, since it uses less digits than its factorization.

28330332508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372767556 (or 372767554 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 28330332508 in words is "twenty-eight billion, three hundred thirty million, three hundred thirty-two thousand, five hundred eight".