1275245498671 has 2 divisors, whose sum is σ = 1275245498672. Its totient is φ = 1275245498670.

The previous prime is 1275245498669. The next prime is 1275245498699. The reversal of 1275245498671 is 1768945425721.

It is a weak prime.

It is an emirp because it is prime and its reverse (1768945425721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1275245498671 - 2¹ = 1275245498669 is a prime.

Together with 1275245498669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1275242498671) 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, 637622749335 + 637622749336.

It is an arithmetic number, because the mean of its divisors is an integer number (637622749336).

Almost surely, 2^{1275245498671} is an apocalyptic number.

1275245498671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275245498671 is an equidigital number, since it uses as much as digits as its factorization.

1275245498671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33868800, while the sum is 61.

The spelling of 1275245498671 in words is "one trillion, two hundred seventy-five billion, two hundred forty-five million, four hundred ninety-eight thousand, six hundred seventy-one".