22539249537 has 16 divisors (see below), whose sum is σ = 34488043392. Its totient is φ = 12826126080.

The previous prime is 22539249521. The next prime is 22539249541. The reversal of 22539249537 is 73594293522.

It is not a de Polignac number, because 22539249537 - 2⁴ = 22539249521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22539249537.

It is not an unprimeable number, because it can be changed into a prime (22539249937) 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 15 ways as a sum of consecutive naturals, for example, 2221698 + ... + 2231819.

It is an arithmetic number, because the mean of its divisors is an integer number (2155502712).

Almost surely, 2^22539249537 is an apocalyptic number.

It is an amenable number.

22539249537 is a deficient number, since it is larger than the sum of its proper divisors (11948793855).

22539249537 is a wasteful number, since it uses less digits than its factorization.

22539249537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453768.

The product of its digits is 4082400, while the sum is 51.

The spelling of 22539249537 in words is "twenty-two billion, five hundred thirty-nine million, two hundred forty-nine thousand, five hundred thirty-seven".