52043120640 has 408 divisors, whose sum is σ = 206270102688. Its totient is φ = 11890851840.

The previous prime is 52043120621. The next prime is 52043120713. The reversal of 52043120640 is 4602134025.

52043120640 is a `hidden beast` number, since 5 + 2 + 0 + 4 + 3 + 12 + 0 + 640 = 666.

It is a super-4 number, since 4×52043120640⁴ (a number of 44 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20642580 + ... + 20645100.

Almost surely, 2^52043120640 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 52043120640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103135051344).

52043120640 is an abundant number, since it is smaller than the sum of its proper divisors (154226982048).

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

52043120640 is an equidigital number, since it uses as much as digits as its factorization.

52043120640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 52043120640 its reverse (4602134025), we get a palindrome (56645254665).

The spelling of 52043120640 in words is "fifty-two billion, forty-three million, one hundred twenty thousand, six hundred forty".