229681793309 has 4 divisors (see below), whose sum is σ = 233574705120. Its totient is φ = 225788881500.

The previous prime is 229681793287. The next prime is 229681793311. The reversal of 229681793309 is 903397186922.

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 a de Polignac number, because none of the positive numbers 2^k-229681793309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59), and also a Moran number because the ratio is a prime number: 3892911751 = 229681793309 / (2 + 2 + 9 + 6 + 8 + 1 + 7 + 9 + 3 + 3 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229681793339) 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, 1946455817 + ... + 1946455934.

It is an arithmetic number, because the mean of its divisors is an integer number (58393676280).

Almost surely, 2^229681793309 is an apocalyptic number.

It is an amenable number.

229681793309 is a deficient number, since it is larger than the sum of its proper divisors (3892911811).

229681793309 is an equidigital number, since it uses as much as digits as its factorization.

229681793309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892911810.

The product of its (nonzero) digits is 8817984, while the sum is 59.

The spelling of 229681793309 in words is "two hundred twenty-nine billion, six hundred eighty-one million, seven hundred ninety-three thousand, three hundred nine".