79985880000 has 980 divisors, whose sum is σ = 321765008488. Its totient is φ = 19595520000.

The previous prime is 79985879993. The next prime is 79985880001. The reversal of 79985880000 is 8858997.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79985880001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 139 ways as a sum of consecutive naturals, for example, 379079895 + ... + 379080105.

Almost surely, 2^79985880000 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 79985880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160882504244).

79985880000 is an abundant number, since it is smaller than the sum of its proper divisors (241779128488).

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

79985880000 is an equidigital number, since it uses as much as digits as its factorization.

79985880000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 79985880000 in words is "seventy-nine billion, nine hundred eighty-five million, eight hundred eighty thousand".