173056477086949 has 2 divisors, whose sum is σ = 173056477086950. Its totient is φ = 173056477086948.

The previous prime is 173056477086853. The next prime is 173056477086967. The reversal of 173056477086949 is 949680774650371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146536109144100 + 26520367942849 = 12105210^2 + 5149793^2 .

It is a cyclic number.

It is not a de Polignac number, because 173056477086949 - 2¹¹ = 173056477084901 is a prime.

It is a super-2 number, since 2×173056477086949² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173056477086979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86528238543474 + 86528238543475.

It is an arithmetic number, because the mean of its divisors is an integer number (86528238543475).

Almost surely, 2^{173056477086949} is an apocalyptic number.

It is an amenable number.

173056477086949 is a deficient number, since it is larger than the sum of its proper divisors (1).

173056477086949 is an equidigital number, since it uses as much as digits as its factorization.

173056477086949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920360960, while the sum is 76.

The spelling of 173056477086949 in words is "one hundred seventy-three trillion, fifty-six billion, four hundred seventy-seven million, eighty-six thousand, nine hundred forty-nine".