79121203200 has 810 divisors, whose sum is σ = 309316285824. Its totient is φ = 19322634240.

The previous prime is 79121203193. The next prime is 79121203201. The reversal of 79121203200 is 230212197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79121203201) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 623001537 + ... + 623001663.

Almost surely, 2^79121203200 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 79121203200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154658142912).

79121203200 is an abundant number, since it is smaller than the sum of its proper divisors (230195082624).

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

79121203200 is a wasteful number, since it uses less digits than its factorization.

79121203200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

Adding to 79121203200 its reverse (230212197), we get a palindrome (79351415397).

The spelling of 79121203200 in words is "seventy-nine billion, one hundred twenty-one million, two hundred three thousand, two hundred".