127752502489 has 2 divisors, whose sum is σ = 127752502490. Its totient is φ = 127752502488.

The previous prime is 127752502481. The next prime is 127752502517. The reversal of 127752502489 is 984205257721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127281265225 + 471237264 = 356765^2 + 21708^2 .

It is a cyclic number.

It is not a de Polignac number, because 127752502489 - 2³ = 127752502481 is a prime.

It is not a weakly prime, because it can be changed into another prime (127752502481) 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, 63876251244 + 63876251245.

It is an arithmetic number, because the mean of its divisors is an integer number (63876251245).

Almost surely, 2^127752502489 is an apocalyptic number.

It is an amenable number.

127752502489 is a deficient number, since it is larger than the sum of its proper divisors (1).

127752502489 is an equidigital number, since it uses as much as digits as its factorization.

127752502489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 127752502489 in words is "one hundred twenty-seven billion, seven hundred fifty-two million, five hundred two thousand, four hundred eighty-nine".