253717323717343 has 2 divisors, whose sum is σ = 253717323717344. Its totient is φ = 253717323717342.

The previous prime is 253717323717331. The next prime is 253717323717421. The reversal of 253717323717343 is 343717323717352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253717323717343 - 2⁵ = 253717323717311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253717323717043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126858661858671 + 126858661858672.

It is an arithmetic number, because the mean of its divisors is an integer number (126858661858672).

Almost surely, 2^{253717323717343} is an apocalyptic number.

253717323717343 is a deficient number, since it is larger than the sum of its proper divisors (1).

253717323717343 is an equidigital number, since it uses as much as digits as its factorization.

253717323717343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46675440, while the sum is 58.

Subtracting 253717323717343 from its reverse (343717323717352), we obtain a palindrome (90000000000009).

The spelling of 253717323717343 in words is "two hundred fifty-three trillion, seven hundred seventeen billion, three hundred twenty-three million, seven hundred seventeen thousand, three hundred forty-three".