22937198909 has 4 divisors (see below), whose sum is σ = 22940318940. Its totient is φ = 22934078880.

The previous prime is 22937198873. The next prime is 22937198927. The reversal of 22937198909 is 90989173922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18257954884 + 4679244025 = 135122^2 + 68405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22937198909 is a prime.

It is a super-2 number, since 2×22937198909² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22937198209) 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, 1548962 + ... + 1563699.

It is an arithmetic number, because the mean of its divisors is an integer number (5735079735).

Almost surely, 2^22937198909 is an apocalyptic number.

It is an amenable number.

22937198909 is a deficient number, since it is larger than the sum of its proper divisors (3120031).

22937198909 is an equidigital number, since it uses as much as digits as its factorization.

22937198909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120030.

The product of its (nonzero) digits is 4408992, while the sum is 59.

The spelling of 22937198909 in words is "twenty-two billion, nine hundred thirty-seven million, one hundred ninety-eight thousand, nine hundred nine".