8131726738 has 8 divisors (see below), whose sum is σ = 12197992320. Its totient is φ = 4065729300.

The previous prime is 8131726717. The next prime is 8131726747. The reversal of 8131726738 is 8376271318.

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

It is a super-2 number, since 2×8131726738² (a number of 21 digits) contains 22 as substring.

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, 48843 + ... + 136561.

It is an arithmetic number, because the mean of its divisors is an integer number (1524749040).

Almost surely, 2^8131726738 is an apocalyptic number.

8131726738 is a deficient number, since it is larger than the sum of its proper divisors (4066265582).

8131726738 is a wasteful number, since it uses less digits than its factorization.

8131726738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134072.

The product of its digits is 338688, while the sum is 46.

The square root of 8131726738 is about 90176.0873957171. The cubic root of 8131726738 is about 2010.9175235658.

The spelling of 8131726738 in words is "eight billion, one hundred thirty-one million, seven hundred twenty-six thousand, seven hundred thirty-eight".