799999120000080 has 3840 divisors, whose sum is σ = 3858881015808000. Its totient is φ = 148642522398720.

The previous prime is 799999120000051. The next prime is 799999120000127. The reversal of 799999120000080 is 80000021999997.

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

It is a junction number, because it is equal to n+sod(n) for n = 799999119999972 and 799999120000017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 172079825596 + ... + 172079830244.

It is an arithmetic number, because the mean of its divisors is an integer number (1004916931200).

Almost surely, 2^{799999120000080} is an apocalyptic number.

799999120000080 is a gapful number since it is divisible by the number (70) 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 799999120000080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1929440507904000).

799999120000080 is an abundant number, since it is smaller than the sum of its proper divisors (3058881895807920).

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

799999120000080 is a wasteful number, since it uses less digits than its factorization.

799999120000080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4984 (or 4966 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 63.

The spelling of 799999120000080 in words is "seven hundred ninety-nine trillion, nine hundred ninety-nine billion, one hundred twenty million, eighty", and thus it is an aban number.