439422864871 has 2 divisors, whose sum is σ = 439422864872. Its totient is φ = 439422864870.

The previous prime is 439422864863. The next prime is 439422864877. The reversal of 439422864871 is 178468224934.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 439422864871 - 2³ = 439422864863 is a prime.

It is a super-4 number, since 4×439422864871⁴ (a number of 48 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (439422864877) 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 as a sum of consecutive naturals, namely, 219711432435 + 219711432436.

It is an arithmetic number, because the mean of its divisors is an integer number (219711432436).

Almost surely, 2^439422864871 is an apocalyptic number.

439422864871 is a deficient number, since it is larger than the sum of its proper divisors (1).

439422864871 is an equidigital number, since it uses as much as digits as its factorization.

439422864871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18579456, while the sum is 58.

The spelling of 439422864871 in words is "four hundred thirty-nine billion, four hundred twenty-two million, eight hundred sixty-four thousand, eight hundred seventy-one".