4045121021841 has 32 divisors (see below), whose sum is σ = 5466776365440. Its totient is φ = 2660324868096.

The previous prime is 4045121021813. The next prime is 4045121021857. The reversal of 4045121021841 is 1481201215404.

It is not a de Polignac number, because 4045121021841 - 2¹³ = 4045121013649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4045121021941) 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, 384183265 + ... + 384193793.

It is an arithmetic number, because the mean of its divisors is an integer number (170836761420).

Almost surely, 2^{4045121021841} is an apocalyptic number.

It is an amenable number.

4045121021841 is a deficient number, since it is larger than the sum of its proper divisors (1421655343599).

4045121021841 is a wasteful number, since it uses less digits than its factorization.

4045121021841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15553.

The product of its (nonzero) digits is 10240, while the sum is 33.

The spelling of 4045121021841 in words is "four trillion, forty-five billion, one hundred twenty-one million, twenty-one thousand, eight hundred forty-one".