28965936705 has 32 divisors (see below), whose sum is σ = 48953118720. Its totient is φ = 14602472640.

The previous prime is 28965936697. The next prime is 28965936757. The reversal of 28965936705 is 50763956982.

It is not a de Polignac number, because 28965936705 - 2³ = 28965936697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 704335 + ... + 744324.

It is an arithmetic number, because the mean of its divisors is an integer number (1529784960).

Almost surely, 2^28965936705 is an apocalyptic number.

It is an amenable number.

28965936705 is a deficient number, since it is larger than the sum of its proper divisors (19987182015).

28965936705 is a wasteful number, since it uses less digits than its factorization.

28965936705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448741.

The product of its (nonzero) digits is 24494400, while the sum is 60.

The spelling of 28965936705 in words is "twenty-eight billion, nine hundred sixty-five million, nine hundred thirty-six thousand, seven hundred five".