3978241758241 has 16 divisors (see below), whose sum is σ = 4405410028800. Its totient is φ = 3573276715008.

The previous prime is 3978241758223. The next prime is 3978241758247. The reversal of 3978241758241 is 1428571428793.

It is a happy number.

3978241758241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3978241758241 - 2⁵ = 3978241758209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3978241758241.

It is not an unprimeable number, because it can be changed into a prime (3978241758247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11416656 + ... + 11759953.

It is an arithmetic number, because the mean of its divisors is an integer number (275338126800).

Almost surely, 2^{3978241758241} is an apocalyptic number.

It is an amenable number.

3978241758241 is a deficient number, since it is larger than the sum of its proper divisors (427168270559).

3978241758241 is a wasteful number, since it uses less digits than its factorization.

3978241758241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23177088.

The product of its digits is 27095040, while the sum is 61.

The spelling of 3978241758241 in words is "three trillion, nine hundred seventy-eight billion, two hundred forty-one million, seven hundred fifty-eight thousand, two hundred forty-one".