80128039712 has 384 divisors, whose sum is σ = 203416012800. Its totient is φ = 30307737600.

The previous prime is 80128039711. The next prime is 80128039721. The reversal of 80128039712 is 21793082108.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 80128039712.

It is not an unprimeable number, because it can be changed into a prime (80128039711) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 442696262 + ... + 442696442.

It is an arithmetic number, because the mean of its divisors is an integer number (529729200).

Almost surely, 2^80128039712 is an apocalyptic number.

80128039712 is a gapful number since it is divisible by the number (82) 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 80128039712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101708006400).

80128039712 is an abundant number, since it is smaller than the sum of its proper divisors (123287973088).

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

80128039712 is a wasteful number, since it uses less digits than its factorization.

80128039712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 80128039712 in words is "eighty billion, one hundred twenty-eight million, thirty-nine thousand, seven hundred twelve".