16878788059 has 4 divisors (see below), whose sum is σ = 19290043504. Its totient is φ = 14467532616.

The previous prime is 16878788053. The next prime is 16878788063. The reversal of 16878788059 is 95088787861.

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

It is a cyclic number.

It is not a de Polignac number, because 16878788059 - 2¹¹ = 16878786011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16878787985 and 16878788003.

It is not an unprimeable number, because it can be changed into a prime (16878788053) 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, 1205627712 + ... + 1205627725.

It is an arithmetic number, because the mean of its divisors is an integer number (4822510876).

Almost surely, 2^16878788059 is an apocalyptic number.

16878788059 is a deficient number, since it is larger than the sum of its proper divisors (2411255445).

16878788059 is an equidigital number, since it uses as much as digits as its factorization.

16878788059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411255444.

The product of its (nonzero) digits is 54190080, while the sum is 67.

The spelling of 16878788059 in words is "sixteen billion, eight hundred seventy-eight million, seven hundred eighty-eight thousand, fifty-nine".