16627073909 has 2 divisors, whose sum is σ = 16627073910. Its totient is φ = 16627073908.

The previous prime is 16627073887. The next prime is 16627073921. The reversal of 16627073909 is 90937072661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11947145809 + 4679928100 = 109303^2 + 68410^2 .

It is a cyclic number.

It is not a de Polignac number, because 16627073909 - 2²⁴ = 16610296693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16627073929) 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, 8313536954 + 8313536955.

It is an arithmetic number, because the mean of its divisors is an integer number (8313536955).

Almost surely, 2^16627073909 is an apocalyptic number.

It is an amenable number.

16627073909 is a deficient number, since it is larger than the sum of its proper divisors (1).

16627073909 is an equidigital number, since it uses as much as digits as its factorization.

16627073909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 50.

The spelling of 16627073909 in words is "sixteen billion, six hundred twenty-seven million, seventy-three thousand, nine hundred nine".