439966917265079 has 4 divisors (see below), whose sum is σ = 444238440733776. Its totient is φ = 435695393796384.

The previous prime is 439966917265037. The next prime is 439966917265103. The reversal of 439966917265079 is 970562719669934.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439966917265079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 439966917264988 and 439966917265006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439966917265019) 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, 2135761734194 + ... + 2135761734399.

It is an arithmetic number, because the mean of its divisors is an integer number (111059610183444).

Almost surely, 2^{439966917265079} is an apocalyptic number.

439966917265079 is a deficient number, since it is larger than the sum of its proper divisors (4271523468697).

439966917265079 is a wasteful number, since it uses less digits than its factorization.

439966917265079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271523468696.

The product of its (nonzero) digits is 8332994880, while the sum is 83.

The spelling of 439966917265079 in words is "four hundred thirty-nine trillion, nine hundred sixty-six billion, nine hundred seventeen million, two hundred sixty-five thousand, seventy-nine".