80878855887808 has 224 divisors, whose sum is σ = 185028693696000. Its totient is φ = 34690649518080.

The previous prime is 80878855887763. The next prime is 80878855887833.

80878855887808 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (88).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3599563998 + ... + 3599586466.

It is an arithmetic number, because the mean of its divisors is an integer number (826020954000).

Almost surely, 2^{80878855887808} is an apocalyptic number.

80878855887808 is a gapful number since it is divisible by the number (88) 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 80878855887808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92514346848000).

80878855887808 is an abundant number, since it is smaller than the sum of its proper divisors (104149837808192).

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

80878855887808 is a wasteful number, since it uses less digits than its factorization.

80878855887808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23563 (or 23553 counting only the distinct ones).

The product of its (nonzero) digits is 20552089600, while the sum is 88.

The spelling of 80878855887808 in words is "eighty trillion, eight hundred seventy-eight billion, eight hundred fifty-five million, eight hundred eighty-seven thousand, eight hundred eight".