2556072211731 has 8 divisors (see below), whose sum is σ = 3408183029760. Its totient is φ = 1704004767432.

The previous prime is 2556072211727. The next prime is 2556072211739. The reversal of 2556072211731 is 1371122706552.

It is a happy number.

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

It is not a de Polignac number, because 2556072211731 - 2² = 2556072211727 is a prime.

It is a super-2 number, since 2×2556072211731² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2556072211739) 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 7 ways as a sum of consecutive naturals, for example, 10705675 + ... + 10941828.

It is an arithmetic number, because the mean of its divisors is an integer number (426022878720).

Almost surely, 2^{2556072211731} is an apocalyptic number.

2556072211731 is a deficient number, since it is larger than the sum of its proper divisors (852110818029).

2556072211731 is a wasteful number, since it uses less digits than its factorization.

2556072211731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21686865.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 2556072211731 in words is "two trillion, five hundred fifty-six billion, seventy-two million, two hundred eleven thousand, seven hundred thirty-one".