5137018891 has 2 divisors, whose sum is σ = 5137018892. Its totient is φ = 5137018890.

The previous prime is 5137018867. The next prime is 5137018933. The reversal of 5137018891 is 1988107315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5137018891 - 2⁷ = 5137018763 is a prime.

It is not a weakly prime, because it can be changed into another prime (5137018801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2568509445 + 2568509446.

It is an arithmetic number, because the mean of its divisors is an integer number (2568509446).

Almost surely, 2^5137018891 is an apocalyptic number.

5137018891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5137018891 is an equidigital number, since it uses as much as digits as its factorization.

5137018891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 43.

The square root of 5137018891 is about 71672.9997349071. Note that the first 3 decimals coincide. The cubic root of 5137018891 is about 1725.4553321276.

The spelling of 5137018891 in words is "five billion, one hundred thirty-seven million, eighteen thousand, eight hundred ninety-one".