253823780849423 has 2 divisors, whose sum is σ = 253823780849424. Its totient is φ = 253823780849422.

The previous prime is 253823780849407. The next prime is 253823780849447. The reversal of 253823780849423 is 324948087328352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253823780849423 - 2⁴ = 253823780849407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253823780849473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126911890424711 + 126911890424712.

It is an arithmetic number, because the mean of its divisors is an integer number (126911890424712).

Almost surely, 2^{253823780849423} is an apocalyptic number.

253823780849423 is a deficient number, since it is larger than the sum of its proper divisors (1).

253823780849423 is an equidigital number, since it uses as much as digits as its factorization.

253823780849423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 557383680, while the sum is 68.

The spelling of 253823780849423 in words is "two hundred fifty-three trillion, eight hundred twenty-three billion, seven hundred eighty million, eight hundred forty-nine thousand, four hundred twenty-three".