30178245601729 has 3 divisors (see below), whose sum is σ = 30178251095203. Its totient is φ = 30178240108256.

The previous prime is 30178245601723. The next prime is 30178245601799. The reversal of 30178245601729 is 92710654287103.

The square root of 30178245601729 is 5493473.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 22039503890625 + 8138741711104 = 4694625^2 + 2852848^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30178245601729 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 30178245601729.

It is not an unprimeable number, because it can be changed into a prime (30178245601723) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2746737 + ... + 8240209.

It is a 1-persistent number, because it is pandigital, but 2⋅30178245601729 = 60356491203458 is not.

Almost surely, 2^{30178245601729} is an apocalyptic number.

30178245601729 is the 5493473-rd square number.

30178245601729 is the 2746737-th centered octagonal number.

It is an amenable number.

30178245601729 is a deficient number, since it is larger than the sum of its proper divisors (5493474).

30178245601729 is an frugal number, since it uses more digits than its factorization.

30178245601729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10986946 (or 5493473 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 30178245601729 in words is "thirty trillion, one hundred seventy-eight billion, two hundred forty-five million, six hundred one thousand, seven hundred twenty-nine".