8138690849908 has 12 divisors (see below), whose sum is σ = 14351431957632. Its totient is φ = 4038281719160.

The previous prime is 8138690849899. The next prime is 8138690849921. The reversal of 8138690849908 is 8099480968318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7765925860 + ... + 7765926907.

It is an arithmetic number, because the mean of its divisors is an integer number (1195952663136).

Almost surely, 2^{8138690849908} is an apocalyptic number.

It is an amenable number.

8138690849908 is a deficient number, since it is larger than the sum of its proper divisors (6212741107724).

8138690849908 is a wasteful number, since it uses less digits than its factorization.

8138690849908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15531852902 (or 15531852900 counting only the distinct ones).

The product of its (nonzero) digits is 214990848, while the sum is 73.

The spelling of 8138690849908 in words is "eight trillion, one hundred thirty-eight billion, six hundred ninety million, eight hundred forty-nine thousand, nine hundred eight".