253195194943 has 2 divisors, whose sum is σ = 253195194944. Its totient is φ = 253195194942.

The previous prime is 253195194907. The next prime is 253195195013. The reversal of 253195194943 is 349491591352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253195194943 - 2²¹ = 253193097791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253195194743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126597597471 + 126597597472.

It is an arithmetic number, because the mean of its divisors is an integer number (126597597472).

Almost surely, 2^253195194943 is an apocalyptic number.

253195194943 is a deficient number, since it is larger than the sum of its proper divisors (1).

253195194943 is an equidigital number, since it uses as much as digits as its factorization.

253195194943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5248800, while the sum is 55.

The spelling of 253195194943 in words is "two hundred fifty-three billion, one hundred ninety-five million, one hundred ninety-four thousand, nine hundred forty-three".