4640086625 has 8 divisors (see below), whose sum is σ = 5790828264. Its totient is φ = 3712069200.

The previous prime is 4640086601. The next prime is 4640086637. The reversal of 4640086625 is 5266800464.

4640086625 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 316235089 + 4323851536 = 17783^2 + 65756^2 .

It is not a de Polignac number, because 4640086625 - 2¹² = 4640082529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18560222 + ... + 18560471.

It is an arithmetic number, because the mean of its divisors is an integer number (723853533).

Almost surely, 2^4640086625 is an apocalyptic number.

It is an amenable number.

4640086625 is a deficient number, since it is larger than the sum of its proper divisors (1150741639).

4640086625 is an equidigital number, since it uses as much as digits as its factorization.

4640086625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37120708 (or 37120698 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 4640086625 is about 68118.1813101319. The cubic root of 4640086625 is about 1667.9205625216.

The spelling of 4640086625 in words is "four billion, six hundred forty million, eighty-six thousand, six hundred twenty-five".