52869640820 has 24 divisors (see below), whose sum is σ = 111055676424. Its totient is φ = 21142250496.

The previous prime is 52869640801. The next prime is 52869640843. The reversal of 52869640820 is 2804696825.

52869640820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 99281296 + 52770359524 = 9964^2 + 229718^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272609 + ... + 424328.

It is an arithmetic number, because the mean of its divisors is an integer number (4627319851).

Almost surely, 2^52869640820 is an apocalyptic number.

It is an amenable number.

52869640820 is an abundant number, since it is smaller than the sum of its proper divisors (58186035604).

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

52869640820 is a wasteful number, since it uses less digits than its factorization.

52869640820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700739 (or 700737 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 52869640820 in words is "fifty-two billion, eight hundred sixty-nine million, six hundred forty thousand, eight hundred twenty".