5117788889 has 2 divisors, whose sum is σ = 5117788890. Its totient is φ = 5117788888.

The previous prime is 5117788883. The next prime is 5117788927. The reversal of 5117788889 is 9888877115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3078363289 + 2039425600 = 55483^2 + 45160^2 .

It is a cyclic number.

It is not a de Polignac number, because 5117788889 - 2²⁰ = 5116740313 is a prime.

It is a super-2 number, since 2×5117788889² = 52383526224743708642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5117788883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2558894444 + 2558894445.

It is an arithmetic number, because the mean of its divisors is an integer number (2558894445).

Almost surely, 2^5117788889 is an apocalyptic number.

It is an amenable number.

5117788889 is a deficient number, since it is larger than the sum of its proper divisors (1).

5117788889 is an equidigital number, since it uses as much as digits as its factorization.

5117788889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9031680, while the sum is 62.

The square root of 5117788889 is about 71538.7230036992. The cubic root of 5117788889 is about 1723.2996072259.

The spelling of 5117788889 in words is "five billion, one hundred seventeen million, seven hundred eighty-eight thousand, eight hundred eighty-nine".