4065699625 has 64 divisors (see below), whose sum is σ = 5604318720. Its totient is φ = 2926560000.

The previous prime is 4065699623. The next prime is 4065699637. The reversal of 4065699625 is 5269965604.

It is not a de Polignac number, because 4065699625 - 2¹ = 4065699623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4065699623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15113991 + ... + 15114259.

It is an arithmetic number, because the mean of its divisors is an integer number (87567480).

Almost surely, 2^4065699625 is an apocalyptic number.

It is an amenable number.

4065699625 is a deficient number, since it is larger than the sum of its proper divisors (1538619095).

4065699625 is a wasteful number, since it uses less digits than its factorization.

4065699625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 52.

The square root of 4065699625 is about 63762.8389032358. The cubic root of 4065699625 is about 1596.0448698187.

The spelling of 4065699625 in words is "four billion, sixty-five million, six hundred ninety-nine thousand, six hundred twenty-five".