16440439579 has 2 divisors, whose sum is σ = 16440439580. Its totient is φ = 16440439578.

The previous prime is 16440439559. The next prime is 16440439703. The reversal of 16440439579 is 97593404461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16440439579 - 2¹⁹ = 16439915291 is a prime.

It is a super-3 number, since 3×16440439579³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (16440439559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8220219789 + 8220219790.

It is an arithmetic number, because the mean of its divisors is an integer number (8220219790).

Almost surely, 2^16440439579 is an apocalyptic number.

16440439579 is a deficient number, since it is larger than the sum of its proper divisors (1).

16440439579 is an equidigital number, since it uses as much as digits as its factorization.

16440439579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 16440439579 in words is "sixteen billion, four hundred forty million, four hundred thirty-nine thousand, five hundred seventy-nine".