439254264961 has 2 divisors, whose sum is σ = 439254264962. Its totient is φ = 439254264960.

The previous prime is 439254264959. The next prime is 439254264991. The reversal of 439254264961 is 169462452934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 421387932736 + 17866332225 = 649144^2 + 133665^2 .

It is a cyclic number.

It is not a de Polignac number, because 439254264961 - 2¹ = 439254264959 is a prime.

Together with 439254264959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (439254264901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219627132480 + 219627132481.

It is an arithmetic number, because the mean of its divisors is an integer number (219627132481).

Almost surely, 2^439254264961 is an apocalyptic number.

It is an amenable number.

439254264961 is a deficient number, since it is larger than the sum of its proper divisors (1).

439254264961 is an equidigital number, since it uses as much as digits as its factorization.

439254264961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11197440, while the sum is 55.

The spelling of 439254264961 in words is "four hundred thirty-nine billion, two hundred fifty-four million, two hundred sixty-four thousand, nine hundred sixty-one".