5135809897 has 32 divisors (see below), whose sum is σ = 5638533120. Its totient is φ = 4665239040.

The previous prime is 5135809879. The next prime is 5135809907. The reversal of 5135809897 is 7989085315.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5135809897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5135809097) by changing a digit.

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, 8323533 + ... + 8324149.

It is an arithmetic number, because the mean of its divisors is an integer number (176204160).

Almost surely, 2^5135809897 is an apocalyptic number.

It is an amenable number.

5135809897 is a deficient number, since it is larger than the sum of its proper divisors (502723223).

5135809897 is a wasteful number, since it uses less digits than its factorization.

5135809897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

The product of its (nonzero) digits is 2721600, while the sum is 55.

The square root of 5135809897 is about 71664.5651420561. The cubic root of 5135809897 is about 1725.3199599165.

The spelling of 5135809897 in words is "five billion, one hundred thirty-five million, eight hundred nine thousand, eight hundred ninety-seven".