53231643761 has 8 divisors (see below), whose sum is σ = 54240459624. Its totient is φ = 52222992640.

The previous prime is 53231643713. The next prime is 53231643763. The reversal of 53231643761 is 16734613235.

53231643761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28639131361 + 24592512400 = 169231^2 + 156820^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 53231643761 - 2⁶ = 53231643697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53231643763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755831 + ... + 823251.

It is an arithmetic number, because the mean of its divisors is an integer number (6780057453).

Almost surely, 2^53231643761 is an apocalyptic number.

It is an amenable number.

53231643761 is a deficient number, since it is larger than the sum of its proper divisors (1008815863).

53231643761 is a wasteful number, since it uses less digits than its factorization.

53231643761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82371.

The product of its digits is 272160, while the sum is 41.

The spelling of 53231643761 in words is "fifty-three billion, two hundred thirty-one million, six hundred forty-three thousand, seven hundred sixty-one".