5131188869 has 2 divisors, whose sum is σ = 5131188870. Its totient is φ = 5131188868.

The previous prime is 5131188781. The next prime is 5131188883. The reversal of 5131188869 is 9688811315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5096532100 + 34656769 = 71390^2 + 5887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5131188869 is a prime.

It is a super-2 number, since 2×5131188869² = 52658198418698998322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5131184869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2565594434 + 2565594435.

It is an arithmetic number, because the mean of its divisors is an integer number (2565594435).

Almost surely, 2^5131188869 is an apocalyptic number.

It is an amenable number.

5131188869 is a deficient number, since it is larger than the sum of its proper divisors (1).

5131188869 is an equidigital number, since it uses as much as digits as its factorization.

5131188869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 50.

The square root of 5131188869 is about 71632.3172108791. The cubic root of 5131188869 is about 1724.8023431301.

The spelling of 5131188869 in words is "five billion, one hundred thirty-one million, one hundred eighty-eight thousand, eight hundred sixty-nine".