28107574729 has 32 divisors (see below), whose sum is σ = 31606077440. Its totient is φ = 24820992000.

The previous prime is 28107574727. The next prime is 28107574769. The reversal of 28107574729 is 92747570182.

It is a cyclic number.

It is not a de Polignac number, because 28107574729 - 2¹ = 28107574727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28107574721) 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 31 ways as a sum of consecutive naturals, for example, 13934329 + ... + 13936345.

It is an arithmetic number, because the mean of its divisors is an integer number (987689920).

Almost surely, 2^28107574729 is an apocalyptic number.

It is an amenable number.

28107574729 is a deficient number, since it is larger than the sum of its proper divisors (3498502711).

28107574729 is a wasteful number, since it uses less digits than its factorization.

28107574729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 28107574729 in words is "twenty-eight billion, one hundred seven million, five hundred seventy-four thousand, seven hundred twenty-nine".