53781302128 has 40 divisors (see below), whose sum is σ = 106522878528. Its totient is φ = 26292652032.

The previous prime is 53781302123. The next prime is 53781302137. The reversal of 53781302128 is 82120318735.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53781302123) 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 7 ways as a sum of consecutive naturals, for example, 742200 + ... + 811432.

Almost surely, 2^53781302128 is an apocalyptic number.

It is an amenable number.

53781302128 is a deficient number, since it is larger than the sum of its proper divisors (52741576400).

53781302128 is a wasteful number, since it uses less digits than its factorization.

53781302128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70321 (or 70315 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 53781302128 in words is "fifty-three billion, seven hundred eighty-one million, three hundred two thousand, one hundred twenty-eight".