8081689008 has 80 divisors (see below), whose sum is σ = 21682449536. Its totient is φ = 2591930880.

The previous prime is 8081688991. The next prime is 8081689013. The reversal of 8081689008 is 8009861808.

It is a super-3 number, since 3×8081689008³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109068 + ... + 167508.

Almost surely, 2^8081689008 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 8081689008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10841224768).

8081689008 is an abundant number, since it is smaller than the sum of its proper divisors (13600760528).

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

8081689008 is a wasteful number, since it uses less digits than its factorization.

8081689008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58562 (or 58556 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 48.

The square root of 8081689008 is about 89898.2147097483. The cubic root of 8081689008 is about 2006.7843774223.

The spelling of 8081689008 in words is "eight billion, eighty-one million, six hundred eighty-nine thousand, eight".