2556944724853 has 4 divisors (see below), whose sum is σ = 2557216200960. Its totient is φ = 2556673248748.

The previous prime is 2556944724833. The next prime is 2556944724883. The reversal of 2556944724853 is 3584274496552.

2556944724853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2556944724853 - 2¹⁷ = 2556944593781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556944724833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135723925 + ... + 135742762.

It is an arithmetic number, because the mean of its divisors is an integer number (639304050240).

Almost surely, 2^{2556944724853} is an apocalyptic number.

It is an amenable number.

2556944724853 is a deficient number, since it is larger than the sum of its proper divisors (271476107).

2556944724853 is an equidigital number, since it uses as much as digits as its factorization.

2556944724853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271476106.

The product of its digits is 290304000, while the sum is 64.

The spelling of 2556944724853 in words is "two trillion, five hundred fifty-six billion, nine hundred forty-four million, seven hundred twenty-four thousand, eight hundred fifty-three".