2581122471751 has 2 divisors, whose sum is σ = 2581122471752. Its totient is φ = 2581122471750.

The previous prime is 2581122471731. The next prime is 2581122471769. The reversal of 2581122471751 is 1571742211852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2581122471751 - 2⁷ = 2581122471623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2581122471731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290561235875 + 1290561235876.

It is an arithmetic number, because the mean of its divisors is an integer number (1290561235876).

Almost surely, 2^{2581122471751} is an apocalyptic number.

2581122471751 is a deficient number, since it is larger than the sum of its proper divisors (1).

2581122471751 is an equidigital number, since it uses as much as digits as its factorization.

2581122471751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313600, while the sum is 46.

The spelling of 2581122471751 in words is "two trillion, five hundred eighty-one billion, one hundred twenty-two million, four hundred seventy-one thousand, seven hundred fifty-one".