4457913638 has 16 divisors (see below), whose sum is σ = 7084020240. Its totient is φ = 2096714496.

The previous prime is 4457913637. The next prime is 4457913643. The reversal of 4457913638 is 8363197544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4457913631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30773 + ... + 99311.

It is an arithmetic number, because the mean of its divisors is an integer number (442751265).

Almost surely, 2^4457913638 is an apocalyptic number.

4457913638 is a deficient number, since it is larger than the sum of its proper divisors (2626106602).

4457913638 is a wasteful number, since it uses less digits than its factorization.

4457913638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70471.

The product of its digits is 2177280, while the sum is 50.

The square root of 4457913638 is about 66767.6091978738. The cubic root of 4457913638 is about 1645.8006022770.

The spelling of 4457913638 in words is "four billion, four hundred fifty-seven million, nine hundred thirteen thousand, six hundred thirty-eight".