28085577435 has 24 divisors (see below), whose sum is σ = 48708838464. Its totient is φ = 14970614400.

The previous prime is 28085577431. The next prime is 28085577467. The reversal of 28085577435 is 53477558082.

28085577435 is a `hidden beast` number, since 2 + 80 + 8 + 557 + 7 + 4 + 3 + 5 = 666.

It is not a de Polignac number, because 28085577435 - 2² = 28085577431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28085577431) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 92227 + ... + 254316.

It is an arithmetic number, because the mean of its divisors is an integer number (2029534936).

Almost surely, 2^28085577435 is an apocalyptic number.

28085577435 is a deficient number, since it is larger than the sum of its proper divisors (20623261029).

28085577435 is a wasteful number, since it uses less digits than its factorization.

28085577435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348355 (or 348352 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 54.

The spelling of 28085577435 in words is "twenty-eight billion, eighty-five million, five hundred seventy-seven thousand, four hundred thirty-five".