5187748513 has 2 divisors, whose sum is σ = 5187748514. Its totient is φ = 5187748512.

The previous prime is 5187748499. The next prime is 5187748583. The reversal of 5187748513 is 3158477815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4134875809 + 1052872704 = 64303^2 + 32448^2 .

It is a cyclic number.

It is not a de Polignac number, because 5187748513 - 2⁵ = 5187748481 is a prime.

It is a super-2 number, since 2×5187748513² = 53825469268267422338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5187748583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2593874256 + 2593874257.

It is an arithmetic number, because the mean of its divisors is an integer number (2593874257).

Almost surely, 2^5187748513 is an apocalyptic number.

It is an amenable number.

5187748513 is a deficient number, since it is larger than the sum of its proper divisors (1).

5187748513 is an equidigital number, since it uses as much as digits as its factorization.

5187748513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940800, while the sum is 49.

The square root of 5187748513 is about 72026.0266362098. The cubic root of 5187748513 is about 1731.1165359664.

The spelling of 5187748513 in words is "five billion, one hundred eighty-seven million, seven hundred forty-eight thousand, five hundred thirteen".