4457606645 has 8 divisors (see below), whose sum is σ = 5439791520. Its totient is φ = 3505642960.

The previous prime is 4457606581. The next prime is 4457606687. The reversal of 4457606645 is 5466067544.

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

It is not a de Polignac number, because 4457606645 - 2⁶ = 4457606581 is a prime.

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 4457606645.

It is a congruent 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, 7554971 + ... + 7555560.

It is an arithmetic number, because the mean of its divisors is an integer number (679973940).

Almost surely, 2^4457606645 is an apocalyptic number.

It is an amenable number.

4457606645 is a deficient number, since it is larger than the sum of its proper divisors (982184875).

4457606645 is a wasteful number, since it uses less digits than its factorization.

4457606645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15110595.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The square root of 4457606645 is about 66765.3101917455. The cubic root of 4457606645 is about 1645.7628222073.

The spelling of 4457606645 in words is "four billion, four hundred fifty-seven million, six hundred six thousand, six hundred forty-five".