2004147671609 has 2 divisors, whose sum is σ = 2004147671610. Its totient is φ = 2004147671608.

The previous prime is 2004147671599. The next prime is 2004147671723. The reversal of 2004147671609 is 9061767414002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1935646125625 + 68501545984 = 1391275^2 + 261728^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004147671609 - 2¹⁶ = 2004147606073 is a prime.

It is a super-2 number, since 2×2004147671609² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2004147671909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002073835804 + 1002073835805.

It is an arithmetic number, because the mean of its divisors is an integer number (1002073835805).

Almost surely, 2^{2004147671609} is an apocalyptic number.

It is an amenable number.

2004147671609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004147671609 is an equidigital number, since it uses as much as digits as its factorization.

2004147671609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 2004147671609 in words is "two trillion, four billion, one hundred forty-seven million, six hundred seventy-one thousand, six hundred nine".