80994489408 has 196 divisors, whose sum is σ = 275401024000. Its totient is φ = 23141189376.

The previous prime is 80994489299. The next prime is 80994489421. The reversal of 80994489408 is 80498449908.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 202593 + ... + 450591.

Almost surely, 2^80994489408 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 80994489408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137700512000).

80994489408 is an abundant number, since it is smaller than the sum of its proper divisors (194406534592).

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

80994489408 is an equidigital number, since it uses as much as digits as its factorization.

80994489408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248036 (or 248011 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 80994489408 in words is "eighty billion, nine hundred ninety-four million, four hundred eighty-nine thousand, four hundred eight".