1260508691947 has 2 divisors, whose sum is σ = 1260508691948. Its totient is φ = 1260508691946.

The previous prime is 1260508691909. The next prime is 1260508691969. The reversal of 1260508691947 is 7491968050621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1260508691947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1260508691891 and 1260508691900.

It is not a weakly prime, because it can be changed into another prime (1260508691047) 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, 630254345973 + 630254345974.

It is an arithmetic number, because the mean of its divisors is an integer number (630254345974).

Almost surely, 2^{1260508691947} is an apocalyptic number.

1260508691947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260508691947 is an equidigital number, since it uses as much as digits as its factorization.

1260508691947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 1260508691947 in words is "one trillion, two hundred sixty billion, five hundred eight million, six hundred ninety-one thousand, nine hundred forty-seven".