4665720386 has 8 divisors (see below), whose sum is σ = 7039035324. Its totient is φ = 2319375280.

The previous prime is 4665720349. The next prime is 4665720391. The reversal of 4665720386 is 6830275664.

It can be written as a sum of positive squares in 2 ways, for example, as 4486990225 + 178730161 = 66985^2 + 13369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4665720386.

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, 6742025 + ... + 6742716.

Almost surely, 2^4665720386 is an apocalyptic number.

4665720386 is a deficient number, since it is larger than the sum of its proper divisors (2373314938).

4665720386 is a wasteful number, since it uses less digits than its factorization.

4665720386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13484916.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The square root of 4665720386 is about 68306.0786899673. The cubic root of 4665720386 is about 1670.9863519501.

The spelling of 4665720386 in words is "four billion, six hundred sixty-five million, seven hundred twenty thousand, three hundred eighty-six".