4986433638 has 24 divisors (see below), whose sum is σ = 11152454976. Its totient is φ = 1608526800.

The previous prime is 4986433637. The next prime is 4986433687. The reversal of 4986433638 is 8363346894.

4986433638 is a `hidden beast` number, since 498 + 64 + 33 + 63 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4986433633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4467573 + ... + 4468688.

It is an arithmetic number, because the mean of its divisors is an integer number (464685624).

Almost surely, 2^4986433638 is an apocalyptic number.

4986433638 is an abundant number, since it is smaller than the sum of its proper divisors (6166021338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4986433638 is a wasteful number, since it uses less digits than its factorization.

4986433638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8936300 (or 8936297 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 54.

The square root of 4986433638 is about 70614.6842944157. The cubic root of 4986433638 is about 1708.4280023196.

The spelling of 4986433638 in words is "four billion, nine hundred eighty-six million, four hundred thirty-three thousand, six hundred thirty-eight".