8157738927 has 8 divisors (see below), whose sum is σ = 11713676464. Its totient is φ = 5020147008.

The previous prime is 8157738907. The next prime is 8157738931. The reversal of 8157738927 is 7298377518.

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

It is not a de Polignac number, because 8157738927 - 2¹¹ = 8157736879 is a prime.

It is a super-2 number, since 2×8157738927² (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 (8157738907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104586358 + ... + 104586435.

It is an arithmetic number, because the mean of its divisors is an integer number (1464209558).

Almost surely, 2^8157738927 is an apocalyptic number.

8157738927 is a deficient number, since it is larger than the sum of its proper divisors (3555937537).

8157738927 is a wasteful number, since it uses less digits than its factorization.

8157738927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209172809.

The product of its digits is 5927040, while the sum is 57.

The square root of 8157738927 is about 90320.2022085868. The cubic root of 8157738927 is about 2013.0594503549.

The spelling of 8157738927 in words is "eight billion, one hundred fifty-seven million, seven hundred thirty-eight thousand, nine hundred twenty-seven".