23763641809 has 2 divisors, whose sum is σ = 23763641810. Its totient is φ = 23763641808.

The previous prime is 23763641801. The next prime is 23763641813. The reversal of 23763641809 is 90814636732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22900163584 + 863478225 = 151328^2 + 29385^2 .

It is a cyclic number.

It is not a de Polignac number, because 23763641809 - 2³ = 23763641801 is a prime.

It is not a weakly prime, because it can be changed into another prime (23763641801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11881820904 + 11881820905.

It is an arithmetic number, because the mean of its divisors is an integer number (11881820905).

Almost surely, 2^23763641809 is an apocalyptic number.

It is an amenable number.

23763641809 is a deficient number, since it is larger than the sum of its proper divisors (1).

23763641809 is an equidigital number, since it uses as much as digits as its factorization.

23763641809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 23763641809 in words is "twenty-three billion, seven hundred sixty-three million, six hundred forty-one thousand, eight hundred nine".