8157838308 has 12 divisors (see below), whose sum is σ = 19034956080. Its totient is φ = 2719279432.

The previous prime is 8157838303. The next prime is 8157838343. The reversal of 8157838308 is 8038387518.

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

It is not an unprimeable number, because it can be changed into a prime (8157838303) 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, 339909918 + ... + 339909941.

It is an arithmetic number, because the mean of its divisors is an integer number (1586246340).

Almost surely, 2^8157838308 is an apocalyptic number.

It is an amenable number.

8157838308 is an abundant number, since it is smaller than the sum of its proper divisors (10877117772).

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

8157838308 is a wasteful number, since it uses less digits than its factorization.

8157838308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679819866 (or 679819864 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 8157838308 is about 90320.7523662198. The cubic root of 8157838308 is about 2013.0676249668.

The spelling of 8157838308 in words is "eight billion, one hundred fifty-seven million, eight hundred thirty-eight thousand, three hundred eight".