1263025503647 has 2 divisors, whose sum is σ = 1263025503648. Its totient is φ = 1263025503646.

The previous prime is 1263025503631. The next prime is 1263025503653. The reversal of 1263025503647 is 7463055203621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1263025503647 - 2⁴ = 1263025503631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1263025503598 and 1263025503607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263025503697) 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, 631512751823 + 631512751824.

It is an arithmetic number, because the mean of its divisors is an integer number (631512751824).

Almost surely, 2^{1263025503647} is an apocalyptic number.

1263025503647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263025503647 is an equidigital number, since it uses as much as digits as its factorization.

1263025503647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 1263025503647 in words is "one trillion, two hundred sixty-three billion, twenty-five million, five hundred three thousand, six hundred forty-seven".