4020863554020 has 384 divisors, whose sum is σ = 12419205120000. Its totient is φ = 968043073536.

The previous prime is 4020863553947. The next prime is 4020863554033. The reversal of 4020863554020 is 204553680204.

It is a self number, because there is not a number n which added to its sum of digits gives 4020863554020.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 2704009717 + ... + 2704011203.

It is an arithmetic number, because the mean of its divisors is an integer number (32341680000).

Almost surely, 2^{4020863554020} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4020863554020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6209602560000).

4020863554020 is an abundant number, since it is smaller than the sum of its proper divisors (8398341565980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4020863554020 is a wasteful number, since it uses less digits than its factorization.

4020863554020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555 (or 2553 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 4020863554020 in words is "four trillion, twenty billion, eight hundred sixty-three million, five hundred fifty-four thousand, twenty".