1263625014871 has 2 divisors, whose sum is σ = 1263625014872. Its totient is φ = 1263625014870.

The previous prime is 1263625014863. The next prime is 1263625014877. The reversal of 1263625014871 is 1784105263621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1263625014871 - 2³ = 1263625014863 is a prime.

It is a super-2 number, since 2×1263625014871² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263625014877) 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, 631812507435 + 631812507436.

It is an arithmetic number, because the mean of its divisors is an integer number (631812507436).

Almost surely, 2^{1263625014871} is an apocalyptic number.

1263625014871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263625014871 is an equidigital number, since it uses as much as digits as its factorization.

1263625014871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 1263625014871 in words is "one trillion, two hundred sixty-three billion, six hundred twenty-five million, fourteen thousand, eight hundred seventy-one".