16173038789 has 2 divisors, whose sum is σ = 16173038790. Its totient is φ = 16173038788.

The previous prime is 16173038771. The next prime is 16173038911. The reversal of 16173038789 is 98783037161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10148950564 + 6024088225 = 100742^2 + 77615^2 .

It is a cyclic number.

It is not a de Polignac number, because 16173038789 - 2²⁰ = 16171990213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16173038789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16173038989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8086519394 + 8086519395.

It is an arithmetic number, because the mean of its divisors is an integer number (8086519395).

Almost surely, 2^16173038789 is an apocalyptic number.

It is an amenable number.

16173038789 is a deficient number, since it is larger than the sum of its proper divisors (1).

16173038789 is an equidigital number, since it uses as much as digits as its factorization.

16173038789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 16173038789 in words is "sixteen billion, one hundred seventy-three million, thirty-eight thousand, seven hundred eighty-nine".