22547124649 has 27 divisors (see below), whose sum is σ = 27705918807. Its totient is φ = 18292726368.

The previous prime is 22547124647. The next prime is 22547124707. The reversal of 22547124649 is 94642174522.

The square root of 22547124649 is 150157.

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

It can be written as a sum of positive squares in only one way, i.e., 1914675049 + 20632449600 = 43757^2 + 143640^2 .

It is not a de Polignac number, because 22547124649 - 2¹ = 22547124647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22547124599 and 22547124608.

It is not an unprimeable number, because it can be changed into a prime (22547124647) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 19970317 + ... + 19971445.

It is an arithmetic number, because the mean of its divisors is an integer number (1026145141).

Almost surely, 2^22547124649 is an apocalyptic number.

22547124649 is the 150157-th square number.

22547124649 is the 75079-th centered octagonal number.

It is an amenable number.

22547124649 is a deficient number, since it is larger than the sum of its proper divisors (5158794158).

22547124649 is an frugal number, since it uses more digits than its factorization.

22547124649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310 (or 1155 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The spelling of 22547124649 in words is "twenty-two billion, five hundred forty-seven million, one hundred twenty-four thousand, six hundred forty-nine".