22749483649 has 4 divisors (see below), whose sum is σ = 23233515264. Its totient is φ = 22265452036.

The previous prime is 22749483611. The next prime is 22749483661. The reversal of 22749483649 is 94638494722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22749483649 - 2¹⁹ = 22748959361 is a prime.

It is a super-2 number, since 2×22749483649² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22749483593 and 22749483602.

It is not an unprimeable number, because it can be changed into a prime (22749483749) 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, 242015737 + ... + 242015830.

It is an arithmetic number, because the mean of its divisors is an integer number (5808378816).

Almost surely, 2^22749483649 is an apocalyptic number.

It is an amenable number.

22749483649 is a deficient number, since it is larger than the sum of its proper divisors (484031615).

22749483649 is an equidigital number, since it uses as much as digits as its factorization.

22749483649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484031614.

The product of its digits is 20901888, while the sum is 58.

The spelling of 22749483649 in words is "twenty-two billion, seven hundred forty-nine million, four hundred eighty-three thousand, six hundred forty-nine".