53851981312 has 40 divisors (see below), whose sum is σ = 107621236800. Its totient is φ = 26920372224.

The previous prime is 53851981303. The next prime is 53851981343. The reversal of 53851981312 is 21318915835.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3611889 + ... + 3626767.

It is an arithmetic number, because the mean of its divisors is an integer number (2690530920).

Almost surely, 2^53851981312 is an apocalyptic number.

It is an amenable number.

53851981312 is a deficient number, since it is larger than the sum of its proper divisors (53769255488).

53851981312 is an equidigital number, since it uses as much as digits as its factorization.

53851981312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21966 (or 21950 counting only the distinct ones).

The product of its digits is 259200, while the sum is 46.

The spelling of 53851981312 in words is "fifty-three billion, eight hundred fifty-one million, nine hundred eighty-one thousand, three hundred twelve".