15045775403689 has 2 divisors, whose sum is σ = 15045775403690. Its totient is φ = 15045775403688.

The previous prime is 15045775403573. The next prime is 15045775403713. The reversal of 15045775403689 is 98630457754051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14174321414400 + 871453989289 = 3764880^2 + 933517^2 .

It is an emirp because it is prime and its reverse (98630457754051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15045775403689 - 2²⁹ = 15045238532777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15045775403689.

It is not a weakly prime, because it can be changed into another prime (15045775403089) 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, 7522887701844 + 7522887701845.

It is an arithmetic number, because the mean of its divisors is an integer number (7522887701845).

Almost surely, 2^{15045775403689} is an apocalyptic number.

It is an amenable number.

15045775403689 is a deficient number, since it is larger than the sum of its proper divisors (1).

15045775403689 is an equidigital number, since it uses as much as digits as its factorization.

15045775403689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008000, while the sum is 64.

The spelling of 15045775403689 in words is "fifteen trillion, forty-five billion, seven hundred seventy-five million, four hundred three thousand, six hundred eighty-nine".