52943858979840 has 352 divisors, whose sum is σ = 190475831291520. Its totient is φ = 14118359408640.

The previous prime is 52943858979727. The next prime is 52943858979877. The reversal of 52943858979840 is 4897985834925.

52943858979840 is a `hidden beast` number, since 5 + 2 + 9 + 438 + 5 + 8 + 97 + 98 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 52943858979840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8833335 + ... + 13561545.

Almost surely, 2^{52943858979840} 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 52943858979840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95237915645760).

52943858979840 is an abundant number, since it is smaller than the sum of its proper divisors (137531972311680).

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

52943858979840 is an frugal number, since it uses more digits than its factorization.

52943858979840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728257 (or 4728221 counting only the distinct ones).

The product of its (nonzero) digits is 6270566400, while the sum is 81.

The spelling of 52943858979840 in words is "fifty-two trillion, nine hundred forty-three billion, eight hundred fifty-eight million, nine hundred seventy-nine thousand, eight hundred forty".