22137987584 has 20 divisors (see below), whose sum is σ = 44232737934. Its totient is φ = 11068993536.

The previous prime is 22137987559. The next prime is 22137987629. The reversal of 22137987584 is 48578973122.

It can be written as a sum of positive squares in only one way, i.e., 15308617984 + 6829369600 = 123728^2 + 82640^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21618617 + ... + 21619640.

Almost surely, 2^22137987584 is an apocalyptic number.

It is an amenable number.

22137987584 is a deficient number, since it is larger than the sum of its proper divisors (22094750350).

22137987584 is an frugal number, since it uses more digits than its factorization.

22137987584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43238275 (or 43238259 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 56.

The spelling of 22137987584 in words is "twenty-two billion, one hundred thirty-seven million, nine hundred eighty-seven thousand, five hundred eighty-four".