253968967247 has 2 divisors, whose sum is σ = 253968967248. Its totient is φ = 253968967246.

The previous prime is 253968967183. The next prime is 253968967249. The reversal of 253968967247 is 742769869352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253968967247 - 2⁶ = 253968967183 is a prime.

Together with 253968967249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253968967249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126984483623 + 126984483624.

It is an arithmetic number, because the mean of its divisors is an integer number (126984483624).

Almost surely, 2^253968967247 is an apocalyptic number.

253968967247 is a deficient number, since it is larger than the sum of its proper divisors (1).

253968967247 is an equidigital number, since it uses as much as digits as its factorization.

253968967247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 274337280, while the sum is 68.

The spelling of 253968967247 in words is "two hundred fifty-three billion, nine hundred sixty-eight million, nine hundred sixty-seven thousand, two hundred forty-seven".