15318428235823 has 2 divisors, whose sum is σ = 15318428235824. Its totient is φ = 15318428235822.

The previous prime is 15318428235811. The next prime is 15318428235853. The reversal of 15318428235823 is 32853282481351.

It is a weak prime.

It is an emirp because it is prime and its reverse (32853282481351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15318428235823 - 2³³ = 15309838301231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15318428235853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7659214117911 + 7659214117912.

It is an arithmetic number, because the mean of its divisors is an integer number (7659214117912).

Almost surely, 2^{15318428235823} is an apocalyptic number.

15318428235823 is a deficient number, since it is larger than the sum of its proper divisors (1).

15318428235823 is an equidigital number, since it uses as much as digits as its factorization.

15318428235823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11059200, while the sum is 55.

The spelling of 15318428235823 in words is "fifteen trillion, three hundred eighteen billion, four hundred twenty-eight million, two hundred thirty-five thousand, eight hundred twenty-three".