5129191187 has 2 divisors, whose sum is σ = 5129191188. Its totient is φ = 5129191186.

The previous prime is 5129191181. The next prime is 5129191201. The reversal of 5129191187 is 7811919215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5129191187 - 2²² = 5124996883 is a prime.

It is not a weakly prime, because it can be changed into another prime (5129191181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564595593 + 2564595594.

It is an arithmetic number, because the mean of its divisors is an integer number (2564595594).

Almost surely, 2^5129191187 is an apocalyptic number.

5129191187 is a deficient number, since it is larger than the sum of its proper divisors (1).

5129191187 is an equidigital number, since it uses as much as digits as its factorization.

5129191187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 44.

The square root of 5129191187 is about 71618.3718538756. The cubic root of 5129191187 is about 1724.5784798807.

The spelling of 5129191187 in words is "five billion, one hundred twenty-nine million, one hundred ninety-one thousand, one hundred eighty-seven".