2604663473 has 2 divisors, whose sum is σ = 2604663474. Its totient is φ = 2604663472.

The previous prime is 2604663463. The next prime is 2604663499. The reversal of 2604663473 is 3743664062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1354828864 + 1249834609 = 36808^2 + 35353^2 .

It is a cyclic number.

It is not a de Polignac number, because 2604663473 - 2¹⁰ = 2604662449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2604663473.

It is not a weakly prime, because it can be changed into another prime (2604663403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302331736 + 1302331737.

It is an arithmetic number, because the mean of its divisors is an integer number (1302331737).

Almost surely, 2^2604663473 is an apocalyptic number.

It is an amenable number.

2604663473 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604663473 is an equidigital number, since it uses as much as digits as its factorization.

2604663473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 41.

The square root of 2604663473 is about 51035.9037639190. The cubic root of 2604663473 is about 1375.8905037895.

The spelling of 2604663473 in words is "two billion, six hundred four million, six hundred sixty-three thousand, four hundred seventy-three".