52783256067840 has 360 divisors, whose sum is σ = 193972701199200. Its totient is φ = 13695114092544.

The previous prime is 52783256067799. The next prime is 52783256067847. The reversal of 52783256067840 is 4876065238725.

52783256067840 is a `hidden beast` number, since 5 + 2 + 7 + 8 + 3 + 2 + 560 + 67 + 8 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×52783256067840² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52783256067847) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3043540 + ... + 10715859.

Almost surely, 2^{52783256067840} 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 52783256067840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96986350599600).

52783256067840 is an abundant number, since it is smaller than the sum of its proper divisors (141189445131360).

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

52783256067840 is a wasteful number, since it uses less digits than its factorization.

52783256067840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13759469 (or 13759446 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 63.

The spelling of 52783256067840 in words is "fifty-two trillion, seven hundred eighty-three billion, two hundred fifty-six million, sixty-seven thousand, eight hundred forty".