4725163644 has 12 divisors (see below), whose sum is σ = 11025381864. Its totient is φ = 1575054544.

The previous prime is 4725163589. The next prime is 4725163657. The reversal of 4725163644 is 4463615274.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 4725163596 and 4725163605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196881807 + ... + 196881830.

It is an arithmetic number, because the mean of its divisors is an integer number (918781822).

Almost surely, 2^4725163644 is an apocalyptic number.

It is an amenable number.

4725163644 is an abundant number, since it is smaller than the sum of its proper divisors (6300218220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4725163644 is a wasteful number, since it uses less digits than its factorization.

4725163644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393763644 (or 393763642 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The square root of 4725163644 is about 68739.8257489790. The cubic root of 4725163644 is about 1678.0527850395.

The spelling of 4725163644 in words is "four billion, seven hundred twenty-five million, one hundred sixty-three thousand, six hundred forty-four".