2656869059 has 4 divisors (see below), whose sum is σ = 2861243616. Its totient is φ = 2452494504.

The previous prime is 2656869041. The next prime is 2656869097. The reversal of 2656869059 is 9509686562.

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

It is a cyclic number.

It is not a de Polignac number, because 2656869059 - 2⁸ = 2656868803 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2656868995 and 2656869013.

It is not an unprimeable number, because it can be changed into a prime (2656869559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102187259 + ... + 102187284.

It is an arithmetic number, because the mean of its divisors is an integer number (715310904).

Almost surely, 2^2656869059 is an apocalyptic number.

2656869059 is a deficient number, since it is larger than the sum of its proper divisors (204374557).

2656869059 is a wasteful number, since it uses less digits than its factorization.

2656869059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204374556.

The product of its (nonzero) digits is 6998400, while the sum is 56.

The square root of 2656869059 is about 51544.8257248000. The cubic root of 2656869059 is about 1385.0221440763.

The spelling of 2656869059 in words is "two billion, six hundred fifty-six million, eight hundred sixty-nine thousand, fifty-nine".