3918795988241 has 4 divisors (see below), whose sum is σ = 4149313399332. Its totient is φ = 3688278577152.

The previous prime is 3918795988213. The next prime is 3918795988243. The reversal of 3918795988241 is 1428895978193.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2740928580625 + 1177867407616 = 1655575^2 + 1085296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3918795988241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3918795988243) 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 3 ways as a sum of consecutive naturals, for example, 115258705520 + ... + 115258705553.

It is an arithmetic number, because the mean of its divisors is an integer number (1037328349833).

Almost surely, 2^{3918795988241} is an apocalyptic number.

It is an amenable number.

3918795988241 is a deficient number, since it is larger than the sum of its proper divisors (230517411091).

3918795988241 is a wasteful number, since it uses less digits than its factorization.

3918795988241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230517411090.

The product of its digits is 313528320, while the sum is 74.

The spelling of 3918795988241 in words is "three trillion, nine hundred eighteen billion, seven hundred ninety-five million, nine hundred eighty-eight thousand, two hundred forty-one".