80986989996000 has 1536 divisors, whose sum is σ = 348431703459840. Its totient is φ = 18048393216000.

The previous prime is 80986989995993. The next prime is 80986989996019. The reversal of 80986989996000 is 69998968908.

It is a super-2 number, since 2×80986989996000² (a number of 29 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 255 ways as a sum of consecutive naturals, for example, 868381372 + ... + 868474628.

It is an arithmetic number, because the mean of its divisors is an integer number (226843556940).

Almost surely, 2^{80986989996000} is an apocalyptic number.

80986989996000 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 80986989996000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174215851729920).

80986989996000 is an abundant number, since it is smaller than the sum of its proper divisors (267444713463840).

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

80986989996000 is a wasteful number, since it uses less digits than its factorization.

80986989996000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93362 (or 93338 counting only the distinct ones).

The product of its (nonzero) digits is 1088391168, while the sum is 81.

The spelling of 80986989996000 in words is "eighty trillion, nine hundred eighty-six billion, nine hundred eighty-nine million, nine hundred ninety-six thousand".