15423656243 has 2 divisors, whose sum is σ = 15423656244. Its totient is φ = 15423656242.

The previous prime is 15423656161. The next prime is 15423656251. The reversal of 15423656243 is 34265632451.

15423656243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15423656243 - 2⁸ = 15423655987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15423656243.

It is not a weakly prime, because it can be changed into another prime (15423656263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7711828121 + 7711828122.

It is an arithmetic number, because the mean of its divisors is an integer number (7711828122).

Almost surely, 2^15423656243 is an apocalyptic number.

15423656243 is a deficient number, since it is larger than the sum of its proper divisors (1).

15423656243 is an equidigital number, since it uses as much as digits as its factorization.

15423656243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 41.

The spelling of 15423656243 in words is "fifteen billion, four hundred twenty-three million, six hundred fifty-six thousand, two hundred forty-three".