8138690030 has 16 divisors (see below), whose sum is σ = 14742954720. Its totient is φ = 3234739872.

The previous prime is 8138690009. The next prime is 8138690039. The reversal of 8138690030 is 300968318.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138690039) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2590370 + ... + 2593509.

It is an arithmetic number, because the mean of its divisors is an integer number (921434670).

Almost surely, 2^8138690030 is an apocalyptic number.

8138690030 is a deficient number, since it is larger than the sum of its proper divisors (6604264690).

8138690030 is a wasteful number, since it uses less digits than its factorization.

8138690030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5184043.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 8138690030 is about 90214.6885490384. The cubic root of 8138690030 is about 2011.4913504783.

The spelling of 8138690030 in words is "eight billion, one hundred thirty-eight million, six hundred ninety thousand, thirty".