4638847725 has 30 divisors (see below), whose sum is σ = 8592753290. Its totient is φ = 2474051040.

The previous prime is 4638847721. The next prime is 4638847747. The reversal of 4638847725 is 5277488364.

It can be written as a sum of positive squares in 3 ways, for example, as 5731236 + 4633116489 = 2394^2 + 68067^2 .

It is not a de Polignac number, because 4638847725 - 2² = 4638847721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638847721) 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 29 ways as a sum of consecutive naturals, for example, 1143370 + ... + 1147419.

Almost surely, 2^4638847725 is an apocalyptic number.

4638847725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4638847725 is a deficient number, since it is larger than the sum of its proper divisors (3953905565).

4638847725 is a wasteful number, since it uses less digits than its factorization.

4638847725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290811 (or 2290797 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The square root of 4638847725 is about 68109.0869488059. The cubic root of 4638847725 is about 1667.7721047530.

The spelling of 4638847725 in words is "four billion, six hundred thirty-eight million, eight hundred forty-seven thousand, seven hundred twenty-five".