4420020864861 has 48 divisors (see below), whose sum is σ = 7435452211200. Its totient is φ = 2477817882144.

The previous prime is 4420020864793. The next prime is 4420020864863. The reversal of 4420020864861 is 1684680200244.

It is not a de Polignac number, because 4420020864861 - 2¹⁸ = 4420020602717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420020864863) 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 47 ways as a sum of consecutive naturals, for example, 589300 + ... + 3031058.

It is an arithmetic number, because the mean of its divisors is an integer number (154905254400).

Almost surely, 2^{4420020864861} is an apocalyptic number.

It is an amenable number.

4420020864861 is a deficient number, since it is larger than the sum of its proper divisors (3015431346339).

4420020864861 is a wasteful number, since it uses less digits than its factorization.

4420020864861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442318 (or 2442315 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The spelling of 4420020864861 in words is "four trillion, four hundred twenty billion, twenty million, eight hundred sixty-four thousand, eight hundred sixty-one".