4138624678 has 8 divisors (see below), whose sum is σ = 6243821568. Its totient is φ = 2057350824.

The previous prime is 4138624579. The next prime is 4138624681. The reversal of 4138624678 is 8764268314.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5980326 + ... + 5981017.

It is an arithmetic number, because the mean of its divisors is an integer number (780477696).

Almost surely, 2^4138624678 is an apocalyptic number.

4138624678 is a deficient number, since it is larger than the sum of its proper divisors (2105196890).

4138624678 is a wasteful number, since it uses less digits than its factorization.

4138624678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11961518.

The product of its digits is 1548288, while the sum is 49.

The square root of 4138624678 is about 64332.1434276832. The cubic root of 4138624678 is about 1605.5309466434.

The spelling of 4138624678 in words is "four billion, one hundred thirty-eight million, six hundred twenty-four thousand, six hundred seventy-eight".