5647623919729 has 27 divisors (see below), whose sum is σ = 6381122375691. Its totient is φ = 4994585774640.

The previous prime is 5647623919697. The next prime is 5647623919739. The reversal of 5647623919729 is 9279193267465.

The square root of 5647623919729 is 2376473.

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., 5053571440225 + 594052479504 = 2248015^2 + 770748^2 .

It is not a de Polignac number, because 5647623919729 - 2⁵ = 5647623919697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5647623919739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 967221592 + ... + 967227430.

Almost surely, 2^{5647623919729} is an apocalyptic number.

5647623919729 is the 2376473-rd square number.

5647623919729 is the 1188237-th centered octagonal number.

It is an amenable number.

5647623919729 is a deficient number, since it is larger than the sum of its proper divisors (733498455962).

5647623919729 is an frugal number, since it uses more digits than its factorization.

5647623919729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11774 (or 5887 counting only the distinct ones).

The product of its digits is 308629440, while the sum is 70.

The spelling of 5647623919729 in words is "five trillion, six hundred forty-seven billion, six hundred twenty-three million, nine hundred nineteen thousand, seven hundred twenty-nine".