3825478765 has 8 divisors (see below), whose sum is σ = 4590919800. Its totient is φ = 3060152832.

The previous prime is 3825478763. The next prime is 3825478777. The reversal of 3825478765 is 5678745283.

It can be written as a sum of positive squares in 4 ways, for example, as 650607049 + 3174871716 = 25507^2 + 56346^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3825478765 - 2¹ = 3825478763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3825478763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85897 + ... + 122593.

It is an arithmetic number, because the mean of its divisors is an integer number (573864975).

Almost surely, 2^3825478765 is an apocalyptic number.

It is an amenable number.

3825478765 is a deficient number, since it is larger than the sum of its proper divisors (765441035).

3825478765 is a wasteful number, since it uses less digits than its factorization.

3825478765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57551.

The product of its digits is 11289600, while the sum is 55.

The square root of 3825478765 is about 61850.4548487721. The cubic root of 3825478765 is about 1563.9706494155.

The spelling of 3825478765 in words is "three billion, eight hundred twenty-five million, four hundred seventy-eight thousand, seven hundred sixty-five".