4644474665225 has 6 divisors (see below), whose sum is σ = 5759148584910. Its totient is φ = 3715579732160.

The previous prime is 4644474665191. The next prime is 4644474665239. The reversal of 4644474665225 is 5225664744464.

It can be written as a sum of positive squares in 3 ways, for example, as 56366357056 + 4588108308169 = 237416^2 + 2141987^2 .

It is not a de Polignac number, because 4644474665225 - 2¹⁰ = 4644474664201 is a prime.

It is a super-2 number, since 2×4644474665225² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92889493280 + ... + 92889493329.

It is an arithmetic number, because the mean of its divisors is an integer number (959858097485).

Almost surely, 2^{4644474665225} is an apocalyptic number.

It is an amenable number.

4644474665225 is a deficient number, since it is larger than the sum of its proper divisors (1114673919685).

4644474665225 is a wasteful number, since it uses less digits than its factorization.

4644474665225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185778986619 (or 185778986614 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 59.

The spelling of 4644474665225 in words is "four trillion, six hundred forty-four billion, four hundred seventy-four million, six hundred sixty-five thousand, two hundred twenty-five".