5115685887 has 24 divisors (see below), whose sum is σ = 7964283600. Its totient is φ = 3145523328.

The previous prime is 5115685853. The next prime is 5115685891. The reversal of 5115685887 is 7885865115.

5115685887 is a `hidden beast` number, since 5 + 1 + 1 + 56 + 8 + 588 + 7 = 666.

5115685887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-5115685887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5115685187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129939 + ... + 164667.

It is an arithmetic number, because the mean of its divisors is an integer number (331845150).

Almost surely, 2^5115685887 is an apocalyptic number.

5115685887 is a deficient number, since it is larger than the sum of its proper divisors (2848597713).

5115685887 is a wasteful number, since it uses less digits than its factorization.

5115685887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36007 (or 36004 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 54.

The square root of 5115685887 is about 71524.0231460731. The cubic root of 5115685887 is about 1723.0635287737.

The spelling of 5115685887 in words is "five billion, one hundred fifteen million, six hundred eighty-five thousand, eight hundred eighty-seven".