52278152912 has 80 divisors (see below), whose sum is σ = 106226951040. Its totient is φ = 24890697216.

The previous prime is 52278152893. The next prime is 52278152947. The reversal of 52278152912 is 21925187225.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40937618 + ... + 40938894.

It is an arithmetic number, because the mean of its divisors is an integer number (1327836888).

Almost surely, 2^52278152912 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 52278152912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53113475520).

52278152912 is an abundant number, since it is smaller than the sum of its proper divisors (53948798128).

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

52278152912 is a wasteful number, since it uses less digits than its factorization.

52278152912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460 (or 2454 counting only the distinct ones).

The product of its digits is 201600, while the sum is 44.

The spelling of 52278152912 in words is "fifty-two billion, two hundred seventy-eight million, one hundred fifty-two thousand, nine hundred twelve".