23243680169 has 4 divisors (see below), whose sum is σ = 23246152644. Its totient is φ = 23241207696.

The previous prime is 23243680111. The next prime is 23243680171. The reversal of 23243680169 is 96108634232.

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 6019742569 + 17223937600 = 77587^2 + 131240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23243680169 is a prime.

It is a super-2 number, since 2×23243680169² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23243680199) 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, 1222082 + ... + 1240955.

It is an arithmetic number, because the mean of its divisors is an integer number (5811538161).

Almost surely, 2^23243680169 is an apocalyptic number.

It is an amenable number.

23243680169 is a deficient number, since it is larger than the sum of its proper divisors (2472475).

23243680169 is an equidigital number, since it uses as much as digits as its factorization.

23243680169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472474.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 23243680169 in words is "twenty-three billion, two hundred forty-three million, six hundred eighty thousand, one hundred sixty-nine".