52399239984 has 960 divisors, whose sum is σ = 204103603200. Its totient is φ = 12496343040.

The previous prime is 52399239973. The next prime is 52399239989. The reversal of 52399239984 is 48993299325.

52399239984 is a `hidden beast` number, since 5 + 2 + 399 + 239 + 9 + 8 + 4 = 666.

52399239984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (52399239989) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 717797772 + ... + 717797844.

It is an arithmetic number, because the mean of its divisors is an integer number (212607920).

Almost surely, 2^52399239984 is an apocalyptic number.

52399239984 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52399239984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102051801600).

52399239984 is an abundant number, since it is smaller than the sum of its proper divisors (151704363216).

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

52399239984 is a wasteful number, since it uses less digits than its factorization.

52399239984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 148 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 63.

The spelling of 52399239984 in words is "fifty-two billion, three hundred ninety-nine million, two hundred thirty-nine thousand, nine hundred eighty-four".