22346678889 has 12 divisors (see below), whose sum is σ = 32303829636. Its totient is φ = 14886112032.

The previous prime is 22346678881. The next prime is 22346678917. The reversal of 22346678889 is 98887664322.

22346678889 is a `hidden beast` number, since 2 + 23 + 466 + 78 + 8 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18276876864 + 4069802025 = 135192^2 + 63795^2 .

It is not a de Polignac number, because 22346678889 - 2³ = 22346678881 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22346678881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 960694 + ... + 983679.

It is an arithmetic number, because the mean of its divisors is an integer number (2691985803).

Almost surely, 2^22346678889 is an apocalyptic number.

It is an amenable number.

22346678889 is a deficient number, since it is larger than the sum of its proper divisors (9957150747).

22346678889 is a wasteful number, since it uses less digits than its factorization.

22346678889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945656 (or 1945653 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 22346678889 in words is "twenty-two billion, three hundred forty-six million, six hundred seventy-eight thousand, eight hundred eighty-nine".