4125373661 has 2 divisors, whose sum is σ = 4125373662. Its totient is φ = 4125373660.

The previous prime is 4125373507. The next prime is 4125373687. The reversal of 4125373661 is 1663735214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3263951161 + 861422500 = 57131^2 + 29350^2 .

It is a cyclic number.

It is not a de Polignac number, because 4125373661 - 2¹⁰ = 4125372637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4125373061) 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, 2062686830 + 2062686831.

It is an arithmetic number, because the mean of its divisors is an integer number (2062686831).

Almost surely, 2^4125373661 is an apocalyptic number.

It is an amenable number.

4125373661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4125373661 is an equidigital number, since it uses as much as digits as its factorization.

4125373661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 4125373661 is about 64229.0717743920. The cubic root of 4125373661 is about 1603.8155890099.

The spelling of 4125373661 in words is "four billion, one hundred twenty-five million, three hundred seventy-three thousand, six hundred sixty-one".