8136722880 has 672 divisors, whose sum is σ = 34349253120. Its totient is φ = 1739612160.

The previous prime is 8136722851. The next prime is 8136722929. The reversal of 8136722880 is 882276318.

8136722880 is a `hidden beast` number, since 8 + 1 + 367 + 2 + 288 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9471891 + ... + 9472749.

It is an arithmetic number, because the mean of its divisors is an integer number (51114960).

Almost surely, 2^8136722880 is an apocalyptic number.

8136722880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8136722880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17174626560).

8136722880 is an abundant number, since it is smaller than the sum of its proper divisors (26212530240).

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

8136722880 is a wasteful number, since it uses less digits than its factorization.

8136722880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 8136722880 is about 90203.7852864280. The cubic root of 8136722880 is about 2011.3292759086.

The spelling of 8136722880 in words is "eight billion, one hundred thirty-six million, seven hundred twenty-two thousand, eight hundred eighty".