22748580644 has 6 divisors (see below), whose sum is σ = 39810016134. Its totient is φ = 11374290320.

The previous prime is 22748580619. The next prime is 22748580667. The reversal of 22748580644 is 44608584722.

It can be written as a sum of positive squares in only one way, i.e., 21313080100 + 1435500544 = 145990^2 + 37888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22748580592 and 22748580601.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2843572577 + ... + 2843572584.

It is an arithmetic number, because the mean of its divisors is an integer number (6635002689).

Almost surely, 2^22748580644 is an apocalyptic number.

It is an amenable number.

22748580644 is a deficient number, since it is larger than the sum of its proper divisors (17061435490).

22748580644 is a wasteful number, since it uses less digits than its factorization.

22748580644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5687145165 (or 5687145163 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 50.

The spelling of 22748580644 in words is "twenty-two billion, seven hundred forty-eight million, five hundred eighty thousand, six hundred forty-four".