53721471811135 has 8 divisors (see below), whose sum is σ = 66545307017856. Its totient is φ = 41590816885920.

The previous prime is 53721471811129. The next prime is 53721471811187. The reversal of 53721471811135 is 53111817412735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-53721471811135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173295070204 + ... + 173295070513.

It is an arithmetic number, because the mean of its divisors is an integer number (8318163377232).

Almost surely, 2^{53721471811135} is an apocalyptic number.

53721471811135 is a deficient number, since it is larger than the sum of its proper divisors (12823835206721).

53721471811135 is a wasteful number, since it uses less digits than its factorization.

53721471811135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346590140753.

The product of its digits is 705600, while the sum is 49.

The spelling of 53721471811135 in words is "fifty-three trillion, seven hundred twenty-one billion, four hundred seventy-one million, eight hundred eleven thousand, one hundred thirty-five".