4028514028221 has 8 divisors (see below), whose sum is σ = 5371517130624. Its totient is φ = 2685593472320.

The previous prime is 4028514028213. The next prime is 4028514028267. The reversal of 4028514028221 is 1228204158204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4028514028221 - 2³ = 4028514028213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4028514028221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028514028321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20522661 + ... + 20718026.

It is an arithmetic number, because the mean of its divisors is an integer number (671439641328).

Almost surely, 2^{4028514028221} is an apocalyptic number.

It is an amenable number.

4028514028221 is a deficient number, since it is larger than the sum of its proper divisors (1343003102403).

4028514028221 is a wasteful number, since it uses less digits than its factorization.

4028514028221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41273251.

The product of its (nonzero) digits is 81920, while the sum is 39.

The spelling of 4028514028221 in words is "four trillion, twenty-eight billion, five hundred fourteen million, twenty-eight thousand, two hundred twenty-one".