2775625006669 has 2 divisors, whose sum is σ = 2775625006670. Its totient is φ = 2775625006668.

The previous prime is 2775625006667. The next prime is 2775625006747. The reversal of 2775625006669 is 9666005265772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2212581875625 + 563043131044 = 1487475^2 + 750362^2 .

It is a cyclic number.

It is not a de Polignac number, because 2775625006669 - 2¹ = 2775625006667 is a prime.

It is a super-2 number, since 2×2775625006669² (a number of 26 digits) contains 22 as substring.

Together with 2775625006667, 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 (2775625006667) 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, 1387812503334 + 1387812503335.

It is an arithmetic number, because the mean of its divisors is an integer number (1387812503335).

Almost surely, 2^{2775625006669} is an apocalyptic number.

It is an amenable number.

2775625006669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2775625006669 is an equidigital number, since it uses as much as digits as its factorization.

2775625006669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57153600, while the sum is 61.

The spelling of 2775625006669 in words is "two trillion, seven hundred seventy-five billion, six hundred twenty-five million, six thousand, six hundred sixty-nine".