52704813840 has 320 divisors, whose sum is σ = 189299884032. Its totient is φ = 11881728000.

The previous prime is 52704813809. The next prime is 52704813859. The reversal of 52704813840 is 4831840725.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 52704813792 and 52704813801.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64987035 + ... + 64987845.

Almost surely, 2^52704813840 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 52704813840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94649942016).

52704813840 is an abundant number, since it is smaller than the sum of its proper divisors (136595070192).

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

52704813840 is a wasteful number, since it uses less digits than its factorization.

52704813840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 52704813840 in words is "fifty-two billion, seven hundred four million, eight hundred thirteen thousand, eight hundred forty".