2551763442469 has 2 divisors, whose sum is σ = 2551763442470. Its totient is φ = 2551763442468.

The previous prime is 2551763442457. The next prime is 2551763442497. The reversal of 2551763442469 is 9642443671552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1733272305444 + 818491137025 = 1316538^2 + 904705^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551763442469 - 2¹³ = 2551763434277 is a prime.

It is a super-2 number, since 2×2551763442469² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551763442269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275881721234 + 1275881721235.

It is an arithmetic number, because the mean of its divisors is an integer number (1275881721235).

Almost surely, 2^{2551763442469} is an apocalyptic number.

It is an amenable number.

2551763442469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551763442469 is an equidigital number, since it uses as much as digits as its factorization.

2551763442469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43545600, while the sum is 58.

The spelling of 2551763442469 in words is "two trillion, five hundred fifty-one billion, seven hundred sixty-three million, four hundred forty-two thousand, four hundred sixty-nine".