22509609992 has 32 divisors (see below), whose sum is σ = 43953975000. Its totient is φ = 10793760768.

The previous prime is 22509609979. The next prime is 22509610001. The reversal of 22509609992 is 29990690522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10647350596 + 11862259396 = 103186^2 + 108914^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291017 + ... + 360152.

Almost surely, 2^22509609992 is an apocalyptic number.

It is an amenable number.

22509609992 is a deficient number, since it is larger than the sum of its proper divisors (21444365008).

22509609992 is a wasteful number, since it uses less digits than its factorization.

22509609992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651353 (or 651349 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 53.

The spelling of 22509609992 in words is "twenty-two billion, five hundred nine million, six hundred nine thousand, nine hundred ninety-two".