5135091063281 has 8 divisors (see below), whose sum is σ = 5723321309280. Its totient is φ = 4578657046848.

The previous prime is 5135091063233. The next prime is 5135091063283. The reversal of 5135091063281 is 1823601905315.

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 5135091063281 - 2⁶ = 5135091063217 is a prime.

It is a super-2 number, since 2×5135091063281² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5135091063283) 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, 7949057051 + ... + 7949057696.

It is an arithmetic number, because the mean of its divisors is an integer number (715415163660).

Almost surely, 2^{5135091063281} is an apocalyptic number.

It is an amenable number.

5135091063281 is a deficient number, since it is larger than the sum of its proper divisors (588230245999).

5135091063281 is a wasteful number, since it uses less digits than its factorization.

5135091063281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15898114783.

The product of its (nonzero) digits is 194400, while the sum is 44.

Adding to 5135091063281 its reverse (1823601905315), we get a palindrome (6958692968596).

The spelling of 5135091063281 in words is "five trillion, one hundred thirty-five billion, ninety-one million, sixty-three thousand, two hundred eighty-one".