23641145813 has 2 divisors, whose sum is σ = 23641145814. Its totient is φ = 23641145812.

The previous prime is 23641145809. The next prime is 23641145837. The reversal of 23641145813 is 31854114632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18549895204 + 5091250609 = 136198^2 + 71353^2 .

It is a cyclic number.

It is not a de Polignac number, because 23641145813 - 2² = 23641145809 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23641145873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11820572906 + 11820572907.

It is an arithmetic number, because the mean of its divisors is an integer number (11820572907).

Almost surely, 2^23641145813 is an apocalyptic number.

It is an amenable number.

23641145813 is a deficient number, since it is larger than the sum of its proper divisors (1).

23641145813 is an equidigital number, since it uses as much as digits as its factorization.

23641145813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 38.

The spelling of 23641145813 in words is "twenty-three billion, six hundred forty-one million, one hundred forty-five thousand, eight hundred thirteen".