28305132506384 has 20 divisors (see below), whose sum is σ = 55501931513616. Its totient is φ = 13982053406112.

The previous prime is 28305132506363. The next prime is 28305132506393. The reversal of 28305132506384 is 48360523150382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10657051574 + ... + 10657054229.

Almost surely, 2^{28305132506384} is an apocalyptic number.

It is an amenable number.

28305132506384 is a deficient number, since it is larger than the sum of its proper divisors (27196799007232).

28305132506384 is a wasteful number, since it uses less digits than its factorization.

28305132506384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21314105894 (or 21314105888 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 28305132506384 in words is "twenty-eight trillion, three hundred five billion, one hundred thirty-two million, five hundred six thousand, three hundred eighty-four".