28805432373 has 12 divisors (see below), whose sum is σ = 41856997728. Its totient is φ = 19088628840.

The previous prime is 28805432351. The next prime is 28805432387. The reversal of 28805432373 is 37323450882.

28805432373 is a `hidden beast` number, since 2 + 8 + 80 + 543 + 23 + 7 + 3 = 666.

It is not a de Polignac number, because 28805432373 - 2¹² = 28805428277 is a prime.

It is a super-2 number, since 2×28805432373² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28805430373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9581143 + ... + 9584148.

It is an arithmetic number, because the mean of its divisors is an integer number (3488083144).

Almost surely, 2^28805432373 is an apocalyptic number.

It is an amenable number.

28805432373 is a deficient number, since it is larger than the sum of its proper divisors (13051565355).

28805432373 is a wasteful number, since it uses less digits than its factorization.

28805432373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19165464 (or 19165461 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 28805432373 in words is "twenty-eight billion, eight hundred five million, four hundred thirty-two thousand, three hundred seventy-three".