22848438649 has 3 divisors (see below), whose sum is σ = 22848589807. Its totient is φ = 22848287492.

The previous prime is 22848438647. The next prime is 22848438659. The reversal of 22848438649 is 94683484822.

The square root of 22848438649 is 151157.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 5177522025 + 17670916624 = 71955^2 + 132932^2 .

It is not a de Polignac number, because 22848438649 - 2¹ = 22848438647 is a prime.

It is a super-2 number, since 2×22848438649² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22848438593 and 22848438602.

It is not an unprimeable number, because it can be changed into a prime (22848438643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 75579 + ... + 226735.

Almost surely, 2^22848438649 is an apocalyptic number.

22848438649 is the 151157-th square number.

22848438649 is the 75579-th centered octagonal number.

It is an amenable number.

22848438649 is a deficient number, since it is larger than the sum of its proper divisors (151158).

22848438649 is an frugal number, since it uses more digits than its factorization.

22848438649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302314 (or 151157 counting only the distinct ones).

The product of its digits is 21233664, while the sum is 58.

The spelling of 22848438649 in words is "twenty-two billion, eight hundred forty-eight million, four hundred thirty-eight thousand, six hundred forty-nine".