3728525013 has 20 divisors (see below), whose sum is σ = 5612305248. Its totient is φ = 2466701640.

The previous prime is 3728524973. The next prime is 3728525033. The reversal of 3728525013 is 3105258273.

It is a happy number.

3728525013 is a `hidden beast` number, since 3 + 72 + 85 + 2 + 501 + 3 = 666.

It is not a de Polignac number, because 3728525013 - 2⁸ = 3728524757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728525033) 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 in 19 ways as a sum of consecutive naturals, for example, 165081 + ... + 186302.

Almost surely, 2^3728525013 is an apocalyptic number.

It is an amenable number.

3728525013 is a deficient number, since it is larger than the sum of its proper divisors (1883780235).

3728525013 is a wasteful number, since it uses less digits than its factorization.

3728525013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351526 (or 351517 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 3728525013 is about 61061.6492816891. The cubic root of 3728525013 is about 1550.6448947412.

The spelling of 3728525013 in words is "three billion, seven hundred twenty-eight million, five hundred twenty-five thousand, thirteen".