254343221340434 has 16 divisors (see below), whose sum is σ = 405566270930016. Its totient is φ = 119214071400000.

The previous prime is 254343221340401. The next prime is 254343221340457. The reversal of 254343221340434 is 434043122343452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14901750392 + ... + 14901767459.

It is an arithmetic number, because the mean of its divisors is an integer number (25347891933126).

Almost surely, 2^{254343221340434} is an apocalyptic number.

254343221340434 is a deficient number, since it is larger than the sum of its proper divisors (151223049589582).

254343221340434 is a wasteful number, since it uses less digits than its factorization.

254343221340434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29803518121.

The product of its (nonzero) digits is 3317760, while the sum is 44.

Adding to 254343221340434 its reverse (434043122343452), we get a palindrome (688386343683886).

The spelling of 254343221340434 in words is "two hundred fifty-four trillion, three hundred forty-three billion, two hundred twenty-one million, three hundred forty thousand, four hundred thirty-four".