22785840693 has 54 divisors (see below), whose sum is σ = 42083510742. Its totient is φ = 11836772640.

The previous prime is 22785840667. The next prime is 22785840713. The reversal of 22785840693 is 39604858722.

22785840693 is a `hidden beast` number, since 227 + 8 + 5 + 8 + 406 + 9 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19660807089 + 3125033604 = 140217^2 + 55902^2 .

It is not a de Polignac number, because 22785840693 - 2²⁶ = 22718731829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22785840293) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 160146 + ... + 266867.

It is an arithmetic number, because the mean of its divisors is an integer number (779324273).

Almost surely, 2^22785840693 is an apocalyptic number.

It is an amenable number.

22785840693 is a deficient number, since it is larger than the sum of its proper divisors (19297670049).

22785840693 is a wasteful number, since it uses less digits than its factorization.

22785840693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427055 (or 427034 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 22785840693 in words is "twenty-two billion, seven hundred eighty-five million, eight hundred forty thousand, six hundred ninety-three".