28609759746 has 24 divisors (see below), whose sum is σ = 62035952940. Its totient is φ = 9529180416.

The previous prime is 28609759727. The next prime is 28609759747. The reversal of 28609759746 is 64795790682.

It can be written as a sum of positive squares in 2 ways, for example, as 28160531721 + 449228025 = 167811^2 + 21195^2 .

It is not an unprimeable number, because it can be changed into a prime (28609759747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 593335 + ... + 639738.

Almost surely, 2^28609759746 is an apocalyptic number.

28609759746 is an abundant number, since it is smaller than the sum of its proper divisors (33426193194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28609759746 is a wasteful number, since it uses less digits than its factorization.

28609759746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234370 (or 1234367 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 28609759746 in words is "twenty-eight billion, six hundred nine million, seven hundred fifty-nine thousand, seven hundred forty-six".