2556072211739 has 2 divisors, whose sum is σ = 2556072211740. Its totient is φ = 2556072211738.

The previous prime is 2556072211727. The next prime is 2556072211753. The reversal of 2556072211739 is 9371122706552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2556072211739 - 2²⁴ = 2556055434523 is a prime.

It is not a weakly prime, because it can be changed into another prime (2556072211139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278036105869 + 1278036105870.

It is an arithmetic number, because the mean of its divisors is an integer number (1278036105870).

Almost surely, 2^{2556072211739} is an apocalyptic number.

2556072211739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556072211739 is an equidigital number, since it uses as much as digits as its factorization.

2556072211739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 2556072211739 in words is "two trillion, five hundred fifty-six billion, seventy-two million, two hundred eleven thousand, seven hundred thirty-nine".