28069005965 has 64 divisors (see below), whose sum is σ = 45581598720. Its totient is φ = 16024055040.

The previous prime is 28069005947. The next prime is 28069005973. The reversal of 28069005965 is 56950096082.

It is not a de Polignac number, because 28069005965 - 2⁶ = 28069005901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 613556 + ... + 657714.

It is an arithmetic number, because the mean of its divisors is an integer number (712212480).

Almost surely, 2^28069005965 is an apocalyptic number.

It is an amenable number.

28069005965 is a deficient number, since it is larger than the sum of its proper divisors (17512592755).

28069005965 is a wasteful number, since it uses less digits than its factorization.

28069005965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44322.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 28069005965 in words is "twenty-eight billion, sixty-nine million, five thousand, nine hundred sixty-five".