2645125069 has 2 divisors, whose sum is σ = 2645125070. Its totient is φ = 2645125068.

The previous prime is 2645125001. The next prime is 2645125099. The reversal of 2645125069 is 9605215462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1407000100 + 1238124969 = 37510^2 + 35187^2 .

It is a cyclic number.

It is not a de Polignac number, because 2645125069 - 2¹⁹ = 2644600781 is a prime.

It is a super-3 number, since 3×2645125069³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2645125099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322562534 + 1322562535.

It is an arithmetic number, because the mean of its divisors is an integer number (1322562535).

Almost surely, 2^2645125069 is an apocalyptic number.

It is an amenable number.

2645125069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645125069 is an equidigital number, since it uses as much as digits as its factorization.

2645125069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 2645125069 is about 51430.7793932777. The cubic root of 2645125069 is about 1382.9784213165.

The spelling of 2645125069 in words is "two billion, six hundred forty-five million, one hundred twenty-five thousand, sixty-nine".