2635004780609 has 2 divisors, whose sum is σ = 2635004780610. Its totient is φ = 2635004780608.

The previous prime is 2635004780593. The next prime is 2635004780633. The reversal of 2635004780609 is 9060874005362.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1460713960000 + 1174290820609 = 1208600^2 + 1083647^2 .

It is a cyclic number.

It is not a de Polignac number, because 2635004780609 - 2⁴ = 2635004780593 is a prime.

It is not a weakly prime, because it can be changed into another prime (2635004780209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317502390304 + 1317502390305.

It is an arithmetic number, because the mean of its divisors is an integer number (1317502390305).

Almost surely, 2^{2635004780609} is an apocalyptic number.

It is an amenable number.

2635004780609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2635004780609 is an equidigital number, since it uses as much as digits as its factorization.

2635004780609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 2635004780609 in words is "two trillion, six hundred thirty-five billion, four million, seven hundred eighty thousand, six hundred nine".