16404736879 has 16 divisors (see below), whose sum is σ = 17102246560. Its totient is φ = 15721205760.

The previous prime is 16404736793. The next prime is 16404736883. The reversal of 16404736879 is 97863740461.

It is a cyclic number.

It is not a de Polignac number, because 16404736879 - 2²⁵ = 16371182447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16404736889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2186767 + ... + 2194255.

It is an arithmetic number, because the mean of its divisors is an integer number (1068890410).

Almost surely, 2^16404736879 is an apocalyptic number.

16404736879 is a deficient number, since it is larger than the sum of its proper divisors (697509681).

16404736879 is an equidigital number, since it uses as much as digits as its factorization.

16404736879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 16404736879 in words is "sixteen billion, four hundred four million, seven hundred thirty-six thousand, eight hundred seventy-nine".