252909278444 has 12 divisors (see below), whose sum is σ = 443058605304. Its totient is φ = 126321105504.

The previous prime is 252909278441. The next prime is 252909278459. The reversal of 252909278444 is 444872909252.

252909278444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×252909278444² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252909278444.

It is not an unprimeable number, because it can be changed into a prime (252909278441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33379169 + ... + 33386744.

It is an arithmetic number, because the mean of its divisors is an integer number (36921550442).

Almost surely, 2^252909278444 is an apocalyptic number.

It is an amenable number.

252909278444 is a deficient number, since it is larger than the sum of its proper divisors (190149326860).

252909278444 is a wasteful number, since it uses less digits than its factorization.

252909278444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66766864 (or 66766862 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 252909278444 in words is "two hundred fifty-two billion, nine hundred nine million, two hundred seventy-eight thousand, four hundred forty-four".