254343436271 has 4 divisors (see below), whose sum is σ = 254344608792. Its totient is φ = 254342263752.

The previous prime is 254343436247. The next prime is 254343436313. The reversal of 254343436271 is 172634343452.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254343436271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254343436211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155261 + ... + 729926.

It is an arithmetic number, because the mean of its divisors is an integer number (63586152198).

Almost surely, 2^254343436271 is an apocalyptic number.

254343436271 is a deficient number, since it is larger than the sum of its proper divisors (1172521).

254343436271 is an equidigital number, since it uses as much as digits as its factorization.

254343436271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172520.

The product of its digits is 1451520, while the sum is 44.

The spelling of 254343436271 in words is "two hundred fifty-four billion, three hundred forty-three million, four hundred thirty-six thousand, two hundred seventy-one".