8187957118908 has 216 divisors, whose sum is σ = 24477677078400. Its totient is φ = 2300455261440.

The previous prime is 8187957118889. The next prime is 8187957118963. The reversal of 8187957118908 is 8098117597818.

It is a super-2 number, since 2×8187957118908² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 540487318 + ... + 540502466.

Almost surely, 2^{8187957118908} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8187957118908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12238838539200).

8187957118908 is an abundant number, since it is smaller than the sum of its proper divisors (16289719959492).

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

8187957118908 is a wasteful number, since it uses less digits than its factorization.

8187957118908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20257 (or 20245 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 72.

The spelling of 8187957118908 in words is "eight trillion, one hundred eighty-seven billion, nine hundred fifty-seven million, one hundred eighteen thousand, nine hundred eight".