22891305746 has 4 divisors (see below), whose sum is σ = 34336958622. Its totient is φ = 11445652872.

The previous prime is 22891305733. The next prime is 22891305791. The reversal of 22891305746 is 64750319822.

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., 21484230625 + 1407075121 = 146575^2 + 37511^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22891305746.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5722826435 + ... + 5722826438.

It is a 1-persistent number, because it is pandigital, but 2⋅22891305746 = 45782611492 is not.

Almost surely, 2^22891305746 is an apocalyptic number.

22891305746 is a deficient number, since it is larger than the sum of its proper divisors (11445652876).

22891305746 is a wasteful number, since it uses less digits than its factorization.

22891305746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11445652875.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 22891305746 in words is "twenty-two billion, eight hundred ninety-one million, three hundred five thousand, seven hundred forty-six".