79684538722800 has 720 divisors, whose sum is σ = 288422791259904. Its totient is φ = 18784313856000.

The previous prime is 79684538722799. The next prime is 79684538722843. The reversal of 79684538722800 is 822783548697.

It is a super-2 number, since 2×79684538722800² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 752518659 + ... + 752624541.

Almost surely, 2^{79684538722800} 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 79684538722800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144211395629952).

79684538722800 is an abundant number, since it is smaller than the sum of its proper divisors (208738252537104).

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

79684538722800 is a wasteful number, since it uses less digits than its factorization.

79684538722800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106070 (or 106048 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 69.

The spelling of 79684538722800 in words is "seventy-nine trillion, six hundred eighty-four billion, five hundred thirty-eight million, seven hundred twenty-two thousand, eight hundred".