4551855187769 has 2 divisors, whose sum is σ = 4551855187770. Its totient is φ = 4551855187768.

The previous prime is 4551855187741. The next prime is 4551855187783. The reversal of 4551855187769 is 9677815581554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2806338595369 + 1745516592400 = 1675213^2 + 1321180^2 .

It is a cyclic number.

It is not a de Polignac number, because 4551855187769 - 2⁸ = 4551855187513 is a prime.

It is a super-2 number, since 2×4551855187769² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4551855187729) 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, 2275927593884 + 2275927593885.

It is an arithmetic number, because the mean of its divisors is an integer number (2275927593885).

Almost surely, 2^{4551855187769} is an apocalyptic number.

It is an amenable number.

4551855187769 is a deficient number, since it is larger than the sum of its proper divisors (1).

4551855187769 is an equidigital number, since it uses as much as digits as its factorization.

4551855187769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360000, while the sum is 71.

The spelling of 4551855187769 in words is "four trillion, five hundred fifty-one billion, eight hundred fifty-five million, one hundred eighty-seven thousand, seven hundred sixty-nine".