22451085919 has 16 divisors (see below), whose sum is σ = 24065856000. Its totient is φ = 20882646720.

The previous prime is 22451085893. The next prime is 22451085941. The reversal of 22451085919 is 91958015422.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22451085919 - 2⁷ = 22451085791 is a prime.

It is a super-2 number, since 2×22451085919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22451085719) 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 15 ways as a sum of consecutive naturals, for example, 226899 + ... + 310459.

It is an arithmetic number, because the mean of its divisors is an integer number (1504116000).

Almost surely, 2^22451085919 is an apocalyptic number.

22451085919 is a deficient number, since it is larger than the sum of its proper divisors (1614770081).

22451085919 is a wasteful number, since it uses less digits than its factorization.

22451085919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83838.

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 22451085919 in words is "twenty-two billion, four hundred fifty-one million, eighty-five thousand, nine hundred nineteen".