8131827079 has 4 divisors (see below), whose sum is σ = 8132300176. Its totient is φ = 8131353984.

The previous prime is 8131827049. The next prime is 8131827083. The reversal of 8131827079 is 9707281318.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8131827079 - 2⁷ = 8131826951 is a prime.

It is a super-2 number, since 2×8131827079² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8131827029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209754 + ... + 245479.

It is an arithmetic number, because the mean of its divisors is an integer number (2033075044).

Almost surely, 2^8131827079 is an apocalyptic number.

8131827079 is a deficient number, since it is larger than the sum of its proper divisors (473097).

8131827079 is a wasteful number, since it uses less digits than its factorization.

8131827079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473096.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 8131827079 is about 90176.6437554648. The cubic root of 8131827079 is about 2010.9257947343.

The spelling of 8131827079 in words is "eight billion, one hundred thirty-one million, eight hundred twenty-seven thousand, seventy-nine".