79871201280 has 832 divisors, whose sum is σ = 314408586240. Its totient is φ = 19110297600.

The previous prime is 79871201257. The next prime is 79871201297. The reversal of 79871201280 is 8210217897.

It is a tau number, because it is divible by the number of its divisors (832).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 294727545 + ... + 294727815.

Almost surely, 2^79871201280 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 79871201280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157204293120).

79871201280 is an abundant number, since it is smaller than the sum of its proper divisors (234537384960).

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

79871201280 is a wasteful number, since it uses less digits than its factorization.

79871201280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The spelling of 79871201280 in words is "seventy-nine billion, eight hundred seventy-one million, two hundred one thousand, two hundred eighty".