2659968455 has 4 divisors (see below), whose sum is σ = 3191962152. Its totient is φ = 2127974760.

The previous prime is 2659968371. The next prime is 2659968457. The reversal of 2659968455 is 5548699562.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-2659968455 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2659968394 and 2659968403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2659968457) 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 3 ways as a sum of consecutive naturals, for example, 265996841 + ... + 265996850.

It is an arithmetic number, because the mean of its divisors is an integer number (797990538).

Almost surely, 2^2659968455 is an apocalyptic number.

2659968455 is a deficient number, since it is larger than the sum of its proper divisors (531993697).

2659968455 is an equidigital number, since it uses as much as digits as its factorization.

2659968455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531993696.

The product of its digits is 23328000, while the sum is 59.

The square root of 2659968455 is about 51574.8820163459. The cubic root of 2659968455 is about 1385.5605050614.

The spelling of 2659968455 in words is "two billion, six hundred fifty-nine million, nine hundred sixty-eight thousand, four hundred fifty-five".