5127118345 has 4 divisors (see below), whose sum is σ = 6152542020. Its totient is φ = 4101694672.

The previous prime is 5127118343. The next prime is 5127118351. The reversal of 5127118345 is 5438117215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5438117215 = 5 ⋅1087623443.

It can be written as a sum of positive squares in 2 ways, for example, as 2506804624 + 2620313721 = 50068^2 + 51189^2 .

It is a cyclic number.

It is not a de Polignac number, because 5127118345 - 2¹ = 5127118343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5127118343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512711830 + ... + 512711839.

It is an arithmetic number, because the mean of its divisors is an integer number (1538135505).

Almost surely, 2^5127118345 is an apocalyptic number.

It is an amenable number.

5127118345 is a deficient number, since it is larger than the sum of its proper divisors (1025423675).

5127118345 is a wasteful number, since it uses less digits than its factorization.

5127118345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025423674.

The product of its digits is 33600, while the sum is 37.

The square root of 5127118345 is about 71603.8989511046. The cubic root of 5127118345 is about 1724.3461326329.

The spelling of 5127118345 in words is "five billion, one hundred twenty-seven million, one hundred eighteen thousand, three hundred forty-five".