16517373869 has 2 divisors, whose sum is σ = 16517373870. Its totient is φ = 16517373868.

The previous prime is 16517373863. The next prime is 16517373937. The reversal of 16517373869 is 96837371561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12195889225 + 4321484644 = 110435^2 + 65738^2 .

It is a cyclic number.

It is not a de Polignac number, because 16517373869 - 2⁴ = 16517373853 is a prime.

It is a super-2 number, since 2×16517373869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16517373863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8258686934 + 8258686935.

It is an arithmetic number, because the mean of its divisors is an integer number (8258686935).

Almost surely, 2^16517373869 is an apocalyptic number.

It is an amenable number.

16517373869 is a deficient number, since it is larger than the sum of its proper divisors (1).

16517373869 is an equidigital number, since it uses as much as digits as its factorization.

16517373869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 56.

The spelling of 16517373869 in words is "sixteen billion, five hundred seventeen million, three hundred seventy-three thousand, eight hundred sixty-nine".