174739884361 has 45 divisors (see below), whose sum is σ = 215624988231. Its totient is φ = 141578019072.

The previous prime is 174739884331. The next prime is 174739884391. The reversal of 174739884361 is 163488937471.

The square root of 174739884361 is 418019.

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

It is an interprime number because it is at equal distance from previous prime (174739884331) and next prime (174739884391).

It can be written as a sum of positive squares in only one way, i.e., 106785821961 + 67954062400 = 326781^2 + 260680^2 .

It is not a de Polignac number, because 174739884361 - 2²⁷ = 174605666633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 174739884361.

It is not an unprimeable number, because it can be changed into a prime (174739884331) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 389175465 + ... + 389175913.

Almost surely, 2^174739884361 is an apocalyptic number.

174739884361 is the 418019-th square number.

174739884361 is the 209010-th centered octagonal number.

It is an amenable number.

174739884361 is a deficient number, since it is larger than the sum of its proper divisors (40885103870).

174739884361 is an frugal number, since it uses more digits than its factorization.

174739884361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 475 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 61.

The spelling of 174739884361 in words is "one hundred seventy-four billion, seven hundred thirty-nine million, eight hundred eighty-four thousand, three hundred sixty-one".