196837744895 has 64 divisors (see below), whose sum is σ = 266105761920. Its totient is φ = 138553958400.

The previous prime is 196837744891. The next prime is 196837744907. The reversal of 196837744895 is 598447738691.

It is a Cunningham number, because it is equal to 443664²-1.

It is not a de Polignac number, because 196837744895 - 2² = 196837744891 is a prime.

It is a super-2 number, since 2×196837744895² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196837744891) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 197429537 + ... + 197430533.

It is an arithmetic number, because the mean of its divisors is an integer number (4157902530).

Almost surely, 2^196837744895 is an apocalyptic number.

196837744895 is a deficient number, since it is larger than the sum of its proper divisors (69268017025).

196837744895 is a wasteful number, since it uses less digits than its factorization.

196837744895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916.

The product of its digits is 365783040, while the sum is 71.

The spelling of 196837744895 in words is "one hundred ninety-six billion, eight hundred thirty-seven million, seven hundred forty-four thousand, eight hundred ninety-five".