1248545803951 has 2 divisors, whose sum is σ = 1248545803952. Its totient is φ = 1248545803950.

The previous prime is 1248545803909. The next prime is 1248545804041. The reversal of 1248545803951 is 1593085458421.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1593085458421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1248545803951 - 2⁷ = 1248545803823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1248545803892 and 1248545803901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1248545203951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624272901975 + 624272901976.

It is an arithmetic number, because the mean of its divisors is an integer number (624272901976).

Almost surely, 2^{1248545803951} is an apocalyptic number.

1248545803951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248545803951 is an equidigital number, since it uses as much as digits as its factorization.

1248545803951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912000, while the sum is 55.

The spelling of 1248545803951 in words is "one trillion, two hundred forty-eight billion, five hundred forty-five million, eight hundred three thousand, nine hundred fifty-one".