439775016979 has 2 divisors, whose sum is σ = 439775016980. Its totient is φ = 439775016978.

The previous prime is 439775016971. The next prime is 439775017061. The reversal of 439775016979 is 979610577934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 439775016979 - 2³ = 439775016971 is a prime.

It is not a weakly prime, because it can be changed into another prime (439775016971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219887508489 + 219887508490.

It is an arithmetic number, because the mean of its divisors is an integer number (219887508490).

Almost surely, 2^439775016979 is an apocalyptic number.

439775016979 is a deficient number, since it is larger than the sum of its proper divisors (1).

439775016979 is an equidigital number, since it uses as much as digits as its factorization.

439775016979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90016920, while the sum is 67.

The spelling of 439775016979 in words is "four hundred thirty-nine billion, seven hundred seventy-five million, sixteen thousand, nine hundred seventy-nine".