8115938766 has 192 divisors, whose sum is σ = 20147871744. Its totient is φ = 2344204800.

The previous prime is 8115938759. The next prime is 8115938767. The reversal of 8115938766 is 6678395118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8115938767) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42491731 + ... + 42491921.

It is an arithmetic number, because the mean of its divisors is an integer number (104936832).

Almost surely, 2^8115938766 is an apocalyptic number.

8115938766 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 8115938766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10073935872).

8115938766 is an abundant number, since it is smaller than the sum of its proper divisors (12031932978).

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

8115938766 is a wasteful number, since it uses less digits than its factorization.

8115938766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 396 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 8115938766 is about 90088.5051824038. The cubic root of 8115938766 is about 2009.6152631108.

The spelling of 8115938766 in words is "eight billion, one hundred fifteen million, nine hundred thirty-eight thousand, seven hundred sixty-six".