8157879171 has 16 divisors (see below), whose sum is σ = 13015420320. Its totient is φ = 5020233120.

The previous prime is 8157879157. The next prime is 8157879179. The reversal of 8157879171 is 1719787518.

It is not a de Polignac number, because 8157879171 - 2¹³ = 8157870979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8157879179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11620560 + ... + 11621261.

It is an arithmetic number, because the mean of its divisors is an integer number (813463770).

Almost surely, 2^8157879171 is an apocalyptic number.

8157879171 is a deficient number, since it is larger than the sum of its proper divisors (4857541149).

8157879171 is a wasteful number, since it uses less digits than its factorization.

8157879171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23241843 (or 23241837 counting only the distinct ones).

The product of its digits is 987840, while the sum is 54.

The square root of 8157879171 is about 90320.9785764083. The cubic root of 8157879171 is about 2013.0709861450.

The spelling of 8157879171 in words is "eight billion, one hundred fifty-seven million, eight hundred seventy-nine thousand, one hundred seventy-one".