3643123425 has 24 divisors (see below), whose sum is σ = 6028828416. Its totient is φ = 1941215040.

The previous prime is 3643123417. The next prime is 3643123469. The reversal of 3643123425 is 5243213463.

It is a happy number.

3643123425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3643123425 - 2³ = 3643123417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62032 + ... + 105518.

It is an arithmetic number, because the mean of its divisors is an integer number (251201184).

Almost surely, 2^3643123425 is an apocalyptic number.

It is an amenable number.

3643123425 is a deficient number, since it is larger than the sum of its proper divisors (2385704991).

3643123425 is a wasteful number, since it uses less digits than its factorization.

3643123425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44617 (or 44612 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 3643123425 is about 60358.2920981036. The cubic root of 3643123425 is about 1538.7141998317.

Adding to 3643123425 its reverse (5243213463), we get a palindrome (8886336888).

The spelling of 3643123425 in words is "three billion, six hundred forty-three million, one hundred twenty-three thousand, four hundred twenty-five".