22908131509 has 4 divisors (see below), whose sum is σ = 23122226304. Its totient is φ = 22694036716.

The previous prime is 22908131507. The next prime is 22908131531. The reversal of 22908131509 is 90513180922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22908131509 - 2¹ = 22908131507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22908131507) 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 3 ways as a sum of consecutive naturals, for example, 107047237 + ... + 107047450.

It is an arithmetic number, because the mean of its divisors is an integer number (5780556576).

Almost surely, 2^22908131509 is an apocalyptic number.

It is an amenable number.

22908131509 is a deficient number, since it is larger than the sum of its proper divisors (214094795).

22908131509 is a wasteful number, since it uses less digits than its factorization.

22908131509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214094794.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 22908131509 in words is "twenty-two billion, nine hundred eight million, one hundred thirty-one thousand, five hundred nine".