173716404849 has 27 divisors (see below), whose sum is σ = 271735701003. Its totient is φ = 106892399952.

The previous prime is 173716404847. The next prime is 173716404857. The reversal of 173716404849 is 948404617371.

It is a happy number.

The square root of 173716404849 is 416793.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 25697693025 + 148018711824 = 160305^2 + 384732^2 .

It is not a de Polignac number, because 173716404849 - 2¹ = 173716404847 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 173716404795 and 173716404804.

It is not an unprimeable number, because it can be changed into a prime (173716404847) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16249584 + ... + 16260270.

Almost surely, 2^173716404849 is an apocalyptic number.

173716404849 is the 416793-rd square number.

173716404849 is the 208397-th centered octagonal number.

It is an amenable number.

173716404849 is a deficient number, since it is larger than the sum of its proper divisors (98019296154).

173716404849 is an frugal number, since it uses more digits than its factorization.

173716404849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21406 (or 10703 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 173716404849 in words is "one hundred seventy-three billion, seven hundred sixteen million, four hundred four thousand, eight hundred forty-nine".