196422192798 has 64 divisors (see below), whose sum is σ = 438337569600. Its totient is φ = 58262077440.

The previous prime is 196422192779. The next prime is 196422192803. The reversal of 196422192798 is 897291224691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1382208 + ... + 1517676.

It is an arithmetic number, because the mean of its divisors is an integer number (6849024525).

Almost surely, 2^196422192798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196422192798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219168784800).

196422192798 is an abundant number, since it is smaller than the sum of its proper divisors (241915376802).

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

196422192798 is a wasteful number, since it uses less digits than its factorization.

196422192798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136157.

The product of its digits is 7838208, while the sum is 60.

The spelling of 196422192798 in words is "one hundred ninety-six billion, four hundred twenty-two million, one hundred ninety-two thousand, seven hundred ninety-eight".