173488077361 has 9 divisors (see below), whose sum is σ = 177840204843. Its totient is φ = 169240000080.

The previous prime is 173488077349. The next prime is 173488077377. The reversal of 173488077361 is 163770884371.

The square root of 173488077361 is 416519.

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., 8359627761 + 165128449600 = 91431^2 + 406360^2 .

It is not a de Polignac number, because 173488077361 - 2⁷ = 173488077233 is a prime.

It is a super-2 number, since 2×173488077361² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173488077311) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17072200 + ... + 17082358.

Almost surely, 2^173488077361 is an apocalyptic number.

173488077361 is the 416519-th square number.

173488077361 is the 208260-th centered octagonal number.

It is an amenable number.

173488077361 is a deficient number, since it is larger than the sum of its proper divisors (4352127482).

173488077361 is an frugal number, since it uses more digits than its factorization.

173488077361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20400 (or 10200 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 55.

The spelling of 173488077361 in words is "one hundred seventy-three billion, four hundred eighty-eight million, seventy-seven thousand, three hundred sixty-one".