1536388243129 has 2 divisors, whose sum is σ = 1536388243130. Its totient is φ = 1536388243128.

The previous prime is 1536388243111. The next prime is 1536388243157. The reversal of 1536388243129 is 9213428836351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1062146666025 + 474241577104 = 1030605^2 + 688652^2 .

It is a cyclic number.

It is not a de Polignac number, because 1536388243129 - 2⁹ = 1536388242617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1536388243129.

It is not a weakly prime, because it can be changed into another prime (1536388243199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 768194121564 + 768194121565.

It is an arithmetic number, because the mean of its divisors is an integer number (768194121565).

Almost surely, 2^{1536388243129} is an apocalyptic number.

It is an amenable number.

1536388243129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1536388243129 is an equidigital number, since it uses as much as digits as its factorization.

1536388243129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 55.

The spelling of 1536388243129 in words is "one trillion, five hundred thirty-six billion, three hundred eighty-eight million, two hundred forty-three thousand, one hundred twenty-nine".