194077197636 has 96 divisors (see below), whose sum is σ = 520929841152. Its totient is φ = 55087724160.

The previous prime is 194077197623. The next prime is 194077197637. The reversal of 194077197636 is 636791770491.

194077197636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 194077197636.

It is not an unprimeable number, because it can be changed into a prime (194077197637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39149670 + ... + 39154626.

It is an arithmetic number, because the mean of its divisors is an integer number (5426352512).

Almost surely, 2^194077197636 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 194077197636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260464920576).

194077197636 is an abundant number, since it is smaller than the sum of its proper divisors (326852643516).

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

194077197636 is a wasteful number, since it uses less digits than its factorization.

194077197636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929 (or 7927 counting only the distinct ones).

The product of its (nonzero) digits is 12002256, while the sum is 60.

The spelling of 194077197636 in words is "one hundred ninety-four billion, seventy-seven million, one hundred ninety-seven thousand, six hundred thirty-six".