8131868148 has 12 divisors (see below), whose sum is σ = 18974359040. Its totient is φ = 2710622712.

The previous prime is 8131868123. The next prime is 8131868153. The reversal of 8131868148 is 8418681318.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8131868148² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8131868097 and 8131868106.

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, 338827828 + ... + 338827851.

Almost surely, 2^8131868148 is an apocalyptic number.

It is an amenable number.

8131868148 is an abundant number, since it is smaller than the sum of its proper divisors (10842490892).

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

8131868148 is a wasteful number, since it uses less digits than its factorization.

8131868148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677655686 (or 677655684 counting only the distinct ones).

The product of its digits is 294912, while the sum is 48.

The square root of 8131868148 is about 90176.8714693518. The cubic root of 8131868148 is about 2010.9291800568.

The spelling of 8131868148 in words is "eight billion, one hundred thirty-one million, eight hundred sixty-eight thousand, one hundred forty-eight".