22691808426 has 32 divisors (see below), whose sum is σ = 51942117888. Its totient is φ = 6473982960.

The previous prime is 22691808409. The next prime is 22691808449. The reversal of 22691808426 is 62480819622.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361920 + ... + 419963.

It is an arithmetic number, because the mean of its divisors is an integer number (1623191184).

Almost surely, 2^22691808426 is an apocalyptic number.

22691808426 is an abundant number, since it is smaller than the sum of its proper divisors (29250309462).

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

22691808426 is a wasteful number, since it uses less digits than its factorization.

22691808426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782586.

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 22691808426 in words is "twenty-two billion, six hundred ninety-one million, eight hundred eight thousand, four hundred twenty-six".