3725485645 has 16 divisors (see below), whose sum is σ = 5146001280. Its totient is φ = 2536236864.

The previous prime is 3725485639. The next prime is 3725485649. The reversal of 3725485645 is 5465845273.

It is not a de Polignac number, because 3725485645 - 2²⁷ = 3591267917 is a prime.

It is a super-3 number, since 3×3725485645³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3725485649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378022 + ... + 387751.

It is an arithmetic number, because the mean of its divisors is an integer number (321625080).

Almost surely, 2^3725485645 is an apocalyptic number.

3725485645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3725485645 is a deficient number, since it is larger than the sum of its proper divisors (1420515635).

3725485645 is a wasteful number, since it uses less digits than its factorization.

3725485645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765924.

The product of its digits is 4032000, while the sum is 49.

The square root of 3725485645 is about 61036.7565078617. The cubic root of 3725485645 is about 1550.2234357051.

The spelling of 3725485645 in words is "three billion, seven hundred twenty-five million, four hundred eighty-five thousand, six hundred forty-five".