22821380858 has 4 divisors (see below), whose sum is σ = 34232071290. Its totient is φ = 11410690428.

The previous prime is 22821380851. The next prime is 22821380861. The reversal of 22821380858 is 85808312822.

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

It can be written as a sum of positive squares in only one way, i.e., 19832243929 + 2989136929 = 140827^2 + 54673^2 .

It is not an unprimeable number, because it can be changed into a prime (22821380851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5705345213 + ... + 5705345216.

Almost surely, 2^22821380858 is an apocalyptic number.

22821380858 is a deficient number, since it is larger than the sum of its proper divisors (11410690432).

22821380858 is a wasteful number, since it uses less digits than its factorization.

22821380858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11410690431.

The product of its (nonzero) digits is 491520, while the sum is 47.

The spelling of 22821380858 in words is "twenty-two billion, eight hundred twenty-one million, three hundred eighty thousand, eight hundred fifty-eight".