52835387778 has 80 divisors (see below), whose sum is σ = 120573104256. Its totient is φ = 17288264160.

The previous prime is 52835387741. The next prime is 52835387833. The reversal of 52835387778 is 87778353825.

52835387778 is a `hidden beast` number, since 5 + 28 + 3 + 538 + 7 + 7 + 78 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5163175 + ... + 5173397.

Almost surely, 2^52835387778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52835387778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60286552128).

52835387778 is an abundant number, since it is smaller than the sum of its proper divisors (67737716478).

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

52835387778 is a wasteful number, since it uses less digits than its factorization.

52835387778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10821 (or 10812 counting only the distinct ones).

The product of its digits is 79027200, while the sum is 63.

The spelling of 52835387778 in words is "fifty-two billion, eight hundred thirty-five million, three hundred eighty-seven thousand, seven hundred seventy-eight".