79105050198 has 48 divisors (see below), whose sum is σ = 177932126736. Its totient is φ = 26340176160.

The previous prime is 79105050191. The next prime is 79105050223. The reversal of 79105050198 is 89105050197.

79105050198 is a `hidden beast` number, since 7 + 9 + 1 + 0 + 50 + 501 + 98 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79105050191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 370840 + ... + 543812.

It is an arithmetic number, because the mean of its divisors is an integer number (3706919307).

Almost surely, 2^79105050198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79105050198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88966063368).

79105050198 is an abundant number, since it is smaller than the sum of its proper divisors (98827076538).

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

79105050198 is a wasteful number, since it uses less digits than its factorization.

79105050198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173931 (or 173919 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

Subtracting 79105050198 from its reverse (89105050197), we obtain a palindrome (9999999999).

The spelling of 79105050198 in words is "seventy-nine billion, one hundred five million, fifty thousand, one hundred ninety-eight".