80400008800 has 36 divisors (see below), whose sum is σ = 196276523436. Its totient is φ = 32160003200.

The previous prime is 80400008747. The next prime is 80400008827. The reversal of 80400008800 is 880000408.

It is a happy number.

It is a super-2 number, since 2×80400008800² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50249206 + ... + 50250805.

It is an arithmetic number, because the mean of its divisors is an integer number (5452125651).

Almost surely, 2^80400008800 is an apocalyptic number.

80400008800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80400008800 is an abundant number, since it is smaller than the sum of its proper divisors (115876514636).

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

80400008800 is a wasteful number, since it uses less digits than its factorization.

80400008800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100500031 (or 100500018 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The spelling of 80400008800 in words is "eighty billion, four hundred million, eight thousand, eight hundred".