1527506260649 has 2 divisors, whose sum is σ = 1527506260650. Its totient is φ = 1527506260648.

The previous prime is 1527506260549. The next prime is 1527506260727. The reversal of 1527506260649 is 9460626057251.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1491085210000 + 36421050649 = 1221100^2 + 190843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1527506260649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1527506260649.

It is not a weakly prime, because it can be changed into another prime (1527506260549) 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, 763753130324 + 763753130325.

It is an arithmetic number, because the mean of its divisors is an integer number (763753130325).

Almost surely, 2^{1527506260649} is an apocalyptic number.

It is an amenable number.

1527506260649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1527506260649 is an equidigital number, since it uses as much as digits as its factorization.

1527506260649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 1527506260649 in words is "one trillion, five hundred twenty-seven billion, five hundred six million, two hundred sixty thousand, six hundred forty-nine".