1263358454387 has 2 divisors, whose sum is σ = 1263358454388. Its totient is φ = 1263358454386.

The previous prime is 1263358454363. The next prime is 1263358454437. The reversal of 1263358454387 is 7834548533621.

It is a weak prime.

It is an emirp because it is prime and its reverse (7834548533621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1263358454387 - 2⁸ = 1263358454131 is a prime.

It is a super-2 number, since 2×1263358454387² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1263358414387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631679227193 + 631679227194.

It is an arithmetic number, because the mean of its divisors is an integer number (631679227194).

Almost surely, 2^{1263358454387} is an apocalyptic number.

1263358454387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263358454387 is an equidigital number, since it uses as much as digits as its factorization.

1263358454387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58060800, while the sum is 59.

The spelling of 1263358454387 in words is "one trillion, two hundred sixty-three billion, three hundred fifty-eight million, four hundred fifty-four thousand, three hundred eighty-seven".