2556944724851 has 8 divisors (see below), whose sum is σ = 2789674734000. Its totient is φ = 2324261463840.

The previous prime is 2556944724833. The next prime is 2556944724883. The reversal of 2556944724851 is 1584274496552.

It is a happy number.

2556944724851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2556944724851 - 2¹⁴ = 2556944708467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2556944724811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11572616 + ... + 11791493.

It is an arithmetic number, because the mean of its divisors is an integer number (348709341750).

Almost surely, 2^{2556944724851} is an apocalyptic number.

2556944724851 is a deficient number, since it is larger than the sum of its proper divisors (232730009149).

2556944724851 is a wasteful number, since it uses less digits than its factorization.

2556944724851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23374069.

The product of its digits is 96768000, while the sum is 62.

The spelling of 2556944724851 in words is "two trillion, five hundred fifty-six billion, nine hundred forty-four million, seven hundred twenty-four thousand, eight hundred fifty-one".