27833920065 has 48 divisors (see below), whose sum is σ = 56262960000. Its totient is φ = 12724070688.

The previous prime is 27833920027. The next prime is 27833920109. The reversal of 27833920065 is 56002933872.

It is not a de Polignac number, because 27833920065 - 2¹⁰ = 27833919041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 27833920065.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 886215 + ... + 917084.

It is an arithmetic number, because the mean of its divisors is an integer number (1172145000).

Almost surely, 2^27833920065 is an apocalyptic number.

It is an amenable number.

27833920065 is an abundant number, since it is smaller than the sum of its proper divisors (28429039935).

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

27833920065 is a wasteful number, since it uses less digits than its factorization.

27833920065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803331 (or 1803314 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 27833920065 in words is "twenty-seven billion, eight hundred thirty-three million, nine hundred twenty thousand, sixty-five".