7863552020 has 12 divisors (see below), whose sum is σ = 16513459284. Its totient is φ = 3145420800.

The previous prime is 7863552019. The next prime is 7863552031. The reversal of 7863552020 is 202553687.

It can be written as a sum of positive squares in 2 ways, for example, as 1633291396 + 6230260624 = 40414^2 + 78932^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196588781 + ... + 196588820.

It is an arithmetic number, because the mean of its divisors is an integer number (1376121607).

Almost surely, 2^7863552020 is an apocalyptic number.

It is an amenable number.

7863552020 is an abundant number, since it is smaller than the sum of its proper divisors (8649907264).

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

7863552020 is a wasteful number, since it uses less digits than its factorization.

7863552020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393177610 (or 393177608 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 7863552020 is about 88676.6712275557. The cubic root of 7863552020 is about 1988.5640693785.

The spelling of 7863552020 in words is "seven billion, eight hundred sixty-three million, five hundred fifty-two thousand, twenty".