53509482768 has 160 divisors (see below), whose sum is σ = 163169842176. Its totient is φ = 14792891904.

The previous prime is 53509482743. The next prime is 53509482823. The reversal of 53509482768 is 86728490535.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1528630 + ... + 1563242.

Almost surely, 2^53509482768 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 53509482768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81584921088).

53509482768 is an abundant number, since it is smaller than the sum of its proper divisors (109660359408).

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

53509482768 is a wasteful number, since it uses less digits than its factorization.

53509482768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34781 (or 34775 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 53509482768 in words is "fifty-three billion, five hundred nine million, four hundred eighty-two thousand, seven hundred sixty-eight".