3866446525 has 12 divisors (see below), whose sum is σ = 4795571412. Its totient is φ = 3092397440.

The previous prime is 3866446471. The next prime is 3866446531. The reversal of 3866446525 is 5256446683.

It can be written as a sum of positive squares in 6 ways, for example, as 905889604 + 2960556921 = 30098^2 + 54411^2 .

It is not a de Polignac number, because 3866446525 - 2³¹ = 1718962877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 99249 + ... + 132601.

It is an arithmetic number, because the mean of its divisors is an integer number (399630951).

Almost surely, 2^3866446525 is an apocalyptic number.

It is an amenable number.

3866446525 is a deficient number, since it is larger than the sum of its proper divisors (929124887).

3866446525 is a wasteful number, since it uses less digits than its factorization.

3866446525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38000 (or 37995 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 49.

The square root of 3866446525 is about 62180.7568705946. The cubic root of 3866446525 is about 1569.5337878975.

The spelling of 3866446525 in words is "three billion, eight hundred sixty-six million, four hundred forty-six thousand, five hundred twenty-five".