4797256346581 has 2 divisors, whose sum is σ = 4797256346582. Its totient is φ = 4797256346580.

The previous prime is 4797256346579. The next prime is 4797256346611. The reversal of 4797256346581 is 1856436527974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3214669702500 + 1582586644081 = 1792950^2 + 1258009^2 .

It is a cyclic number.

It is not a de Polignac number, because 4797256346581 - 2¹ = 4797256346579 is a prime.

It is a super-2 number, since 2×4797256346581² (a number of 26 digits) contains 22 as substring.

Together with 4797256346579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4797256346551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2398628173290 + 2398628173291.

It is an arithmetic number, because the mean of its divisors is an integer number (2398628173291).

Almost surely, 2^{4797256346581} is an apocalyptic number.

It is an amenable number.

4797256346581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4797256346581 is an equidigital number, since it uses as much as digits as its factorization.

4797256346581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 304819200, while the sum is 67.

The spelling of 4797256346581 in words is "four trillion, seven hundred ninety-seven billion, two hundred fifty-six million, three hundred forty-six thousand, five hundred eighty-one".