2125850669 has 2 divisors, whose sum is σ = 2125850670. Its totient is φ = 2125850668.

The previous prime is 2125850609. The next prime is 2125850717. The reversal of 2125850669 is 9660585212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1388456644 + 737394025 = 37262^2 + 27155^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125850669 - 2⁸ = 2125850413 is a prime.

It is a super-2 number, since 2×2125850669² = 9038482133775495122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2125850609) 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, 1062925334 + 1062925335.

It is an arithmetic number, because the mean of its divisors is an integer number (1062925335).

Almost surely, 2^2125850669 is an apocalyptic number.

It is an amenable number.

2125850669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125850669 is an equidigital number, since it uses as much as digits as its factorization.

2125850669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 2125850669 is about 46106.9481640240. The cubic root of 2125850669 is about 1285.8123261317.

The spelling of 2125850669 in words is "two billion, one hundred twenty-five million, eight hundred fifty thousand, six hundred sixty-nine".