4627856638 has 32 divisors (see below), whose sum is σ = 7550484480. Its totient is φ = 2119284000.

The previous prime is 4627856617. The next prime is 4627856693. The reversal of 4627856638 is 8366587264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2191203 + ... + 2193313.

It is an arithmetic number, because the mean of its divisors is an integer number (235952640).

Almost surely, 2^4627856638 is an apocalyptic number.

4627856638 is a deficient number, since it is larger than the sum of its proper divisors (2922627842).

4627856638 is a wasteful number, since it uses less digits than its factorization.

4627856638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024.

The product of its digits is 11612160, while the sum is 55.

The square root of 4627856638 is about 68028.3517219108. The cubic root of 4627856638 is about 1666.4538805055.

The spelling of 4627856638 in words is "four billion, six hundred twenty-seven million, eight hundred fifty-six thousand, six hundred thirty-eight".