2195194391936 has 1024 divisors, whose sum is σ = 6159089664000. Its totient is φ = 754928418816.

The previous prime is 2195194391837. The next prime is 2195194391939. The reversal of 2195194391936 is 6391934915912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195194391939) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 21312566861 + ... + 21312566963.

It is an arithmetic number, because the mean of its divisors is an integer number (6014736000).

Almost surely, 2^{2195194391936} is an apocalyptic number.

2195194391936 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2195194391936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3079544832000).

2195194391936 is an abundant number, since it is smaller than the sum of its proper divisors (3963895272064).

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

2195194391936 is a wasteful number, since it uses less digits than its factorization.

2195194391936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 299 counting only the distinct ones).

The product of its digits is 14171760, while the sum is 62.

The spelling of 2195194391936 in words is "two trillion, one hundred ninety-five billion, one hundred ninety-four million, three hundred ninety-one thousand, nine hundred thirty-six".