23845279387793 has 2 divisors, whose sum is σ = 23845279387794. Its totient is φ = 23845279387792.

The previous prime is 23845279387757. The next prime is 23845279387819. The reversal of 23845279387793 is 39778397254832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14367950898064 + 9477328489729 = 3790508^2 + 3078527^2 .

It is a cyclic number.

It is not a de Polignac number, because 23845279387793 - 2¹² = 23845279383697 is a prime.

It is not a weakly prime, because it can be changed into another prime (23845279387493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11922639693896 + 11922639693897.

It is an arithmetic number, because the mean of its divisors is an integer number (11922639693897).

Almost surely, 2^{23845279387793} is an apocalyptic number.

It is an amenable number.

23845279387793 is a deficient number, since it is larger than the sum of its proper divisors (1).

23845279387793 is an equidigital number, since it uses as much as digits as its factorization.

23845279387793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840721920, while the sum is 77.

The spelling of 23845279387793 in words is "twenty-three trillion, eight hundred forty-five billion, two hundred seventy-nine million, three hundred eighty-seven thousand, seven hundred ninety-three".