23263156529 has 2 divisors, whose sum is σ = 23263156530. Its totient is φ = 23263156528.

The previous prime is 23263156523. The next prime is 23263156571. The reversal of 23263156529 is 92565136232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11745574129 + 11517582400 = 108377^2 + 107320^2 .

It is a cyclic number.

It is not a de Polignac number, because 23263156529 - 2⁴ = 23263156513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23263156529.

It is not a weakly prime, because it can be changed into another prime (23263156523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11631578264 + 11631578265.

It is an arithmetic number, because the mean of its divisors is an integer number (11631578265).

Almost surely, 2^23263156529 is an apocalyptic number.

It is an amenable number.

23263156529 is a deficient number, since it is larger than the sum of its proper divisors (1).

23263156529 is an equidigital number, since it uses as much as digits as its factorization.

23263156529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 44.

The spelling of 23263156529 in words is "twenty-three billion, two hundred sixty-three million, one hundred fifty-six thousand, five hundred twenty-nine".