252785469568 has 128 divisors (see below), whose sum is σ = 539779593600. Its totient is φ = 117501050880.

The previous prime is 252785469457. The next prime is 252785469569. The reversal of 252785469568 is 865964587252.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (252785469569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90570253 + ... + 90573043.

It is an arithmetic number, because the mean of its divisors is an integer number (4217028075).

Almost surely, 2^252785469568 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 252785469568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269889796800).

252785469568 is an abundant number, since it is smaller than the sum of its proper divisors (286994124032).

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

252785469568 is a wasteful number, since it uses less digits than its factorization.

252785469568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318 (or 3306 counting only the distinct ones).

The product of its digits is 290304000, while the sum is 67.

The spelling of 252785469568 in words is "two hundred fifty-two billion, seven hundred eighty-five million, four hundred sixty-nine thousand, five hundred sixty-eight".