22685795437 has 4 divisors (see below), whose sum is σ = 22689594396. Its totient is φ = 22681996480.

The previous prime is 22685795399. The next prime is 22685795449. The reversal of 22685795437 is 73459758622.

It is a happy number.

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 3841644361 + 18844151076 = 61981^2 + 137274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22685795437 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 (22685795467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1890508 + ... + 1902469.

It is an arithmetic number, because the mean of its divisors is an integer number (5672398599).

Almost surely, 2^22685795437 is an apocalyptic number.

It is an amenable number.

22685795437 is a deficient number, since it is larger than the sum of its proper divisors (3798959).

22685795437 is an equidigital number, since it uses as much as digits as its factorization.

22685795437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798958.

The product of its digits is 25401600, while the sum is 58.

The spelling of 22685795437 in words is "twenty-two billion, six hundred eighty-five million, seven hundred ninety-five thousand, four hundred thirty-seven".