4050042021005 has 16 divisors (see below), whose sum is σ = 4926760228080. Its totient is φ = 3195562825728.

The previous prime is 4050042020993. The next prime is 4050042021007. The reversal of 4050042021005 is 5001202400504.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 194654792809 + 3855387228196 = 441197^2 + 1963514^2 .

It is a cyclic number.

It is not a de Polignac number, because 4050042021005 - 2²⁰ = 4050040972429 is a prime.

It is a super-2 number, since 2×4050042021005² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4050042021007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15548681 + ... + 15807009.

It is an arithmetic number, because the mean of its divisors is an integer number (307922514255).

Almost surely, 2^{4050042021005} is an apocalyptic number.

It is an amenable number.

4050042021005 is a deficient number, since it is larger than the sum of its proper divisors (876718207075).

4050042021005 is a wasteful number, since it uses less digits than its factorization.

4050042021005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301360.

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 4050042021005 its reverse (5001202400504), we get a palindrome (9051244421509).

It can be divided in two parts, 40500 and 42021005, that multiplied together give a square (1701850702500 = 1304550²).

The spelling of 4050042021005 in words is "four trillion, fifty billion, forty-two million, twenty-one thousand, five".