253684981852 has 12 divisors (see below), whose sum is σ = 447189220800. Its totient is φ = 125916633056.

The previous prime is 253684981829. The next prime is 253684981853. The reversal of 253684981852 is 258189486352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253684981853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231463852 + ... + 231464947.

It is an arithmetic number, because the mean of its divisors is an integer number (37265768400).

Almost surely, 2^253684981852 is an apocalyptic number.

It is an amenable number.

253684981852 is a deficient number, since it is larger than the sum of its proper divisors (193504238948).

253684981852 is a wasteful number, since it uses less digits than its factorization.

253684981852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462928940 (or 462928938 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 61.

The spelling of 253684981852 in words is "two hundred fifty-three billion, six hundred eighty-four million, nine hundred eighty-one thousand, eight hundred fifty-two".