22858640929 has 4 divisors (see below), whose sum is σ = 24203266884. Its totient is φ = 21514014976.

The previous prime is 22858640921. The next prime is 22858640957. The reversal of 22858640929 is 92904685822.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16875309025 + 5983331904 = 129905^2 + 77352^2 .

It is a cyclic number.

It is not a de Polignac number, because 22858640929 - 2³ = 22858640921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22858640929.

It is not an unprimeable number, because it can be changed into a prime (22858640921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672312952 + ... + 672312985.

It is an arithmetic number, because the mean of its divisors is an integer number (6050816721).

Almost surely, 2^22858640929 is an apocalyptic number.

It is an amenable number.

22858640929 is a deficient number, since it is larger than the sum of its proper divisors (1344625955).

22858640929 is a wasteful number, since it uses less digits than its factorization.

22858640929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344625954.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 22858640929 in words is "twenty-two billion, eight hundred fifty-eight million, six hundred forty thousand, nine hundred twenty-nine".