52135379693 has 8 divisors (see below), whose sum is σ = 52412082168. Its totient is φ = 51858745344.

The previous prime is 52135379683. The next prime is 52135379711. The reversal of 52135379693 is 39697353125.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3313383844 + 48821995849 = 57562^2 + 220957^2 .

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 52135379693 - 2¹⁸ = 52135117549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52135379623) 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, 2470121 + ... + 2491137.

It is an arithmetic number, because the mean of its divisors is an integer number (6551510271).

Almost surely, 2^52135379693 is an apocalyptic number.

It is an amenable number.

52135379693 is a deficient number, since it is larger than the sum of its proper divisors (276702475).

52135379693 is a wasteful number, since it uses less digits than its factorization.

52135379693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34063.

The product of its digits is 4592700, while the sum is 53.

The spelling of 52135379693 in words is "fifty-two billion, one hundred thirty-five million, three hundred seventy-nine thousand, six hundred ninety-three".