5117934987 has 24 divisors (see below), whose sum is σ = 8324779008. Its totient is φ = 3001719600.

The previous prime is 5117934931. The next prime is 5117935001. The reversal of 5117934987 is 7894397115.

It is a happy number.

5117934987 is a `hidden beast` number, since 51 + 17 + 93 + 498 + 7 = 666.

It is not a de Polignac number, because 5117934987 - 2⁷ = 5117934859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5117934917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 830743 + ... + 836880.

It is an arithmetic number, because the mean of its divisors is an integer number (346865792).

Almost surely, 2^5117934987 is an apocalyptic number.

5117934987 is a deficient number, since it is larger than the sum of its proper divisors (3206844021).

5117934987 is a wasteful number, since it uses less digits than its factorization.

5117934987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667671 (or 1667668 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 5117934987 is about 71539.7441077336. The cubic root of 5117934987 is about 1723.3160054684.

The spelling of 5117934987 in words is "five billion, one hundred seventeen million, nine hundred thirty-four thousand, nine hundred eighty-seven".