4638964225 has 12 divisors (see below), whose sum is σ = 6574075264. Its totient is φ = 3181003920.

The previous prime is 4638964219. The next prime is 4638964241. The reversal of 4638964225 is 5224698364.

It is a happy number.

It is not a de Polignac number, because 4638964225 - 2⁵ = 4638964193 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13254009 + ... + 13254358.

Almost surely, 2^4638964225 is an apocalyptic number.

It is an amenable number.

4638964225 is a deficient number, since it is larger than the sum of its proper divisors (1935111039).

4638964225 is a wasteful number, since it uses less digits than its factorization.

4638964225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26508384 (or 26508379 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 49.

The square root of 4638964225 is about 68109.9421890813. The cubic root of 4638964225 is about 1667.7860661097.

The spelling of 4638964225 in words is "four billion, six hundred thirty-eight million, nine hundred sixty-four thousand, two hundred twenty-five".