5115685851 has 12 divisors (see below), whose sum is σ = 7417423728. Its totient is φ = 3397488144.

The previous prime is 5115685831. The next prime is 5115685853. The reversal of 5115685851 is 1585865115.

5115685851 is a `hidden beast` number, since 5 + 1 + 1 + 5 + 68 + 585 + 1 = 666.

It is not a de Polignac number, because 5115685851 - 2⁶ = 5115685787 is a prime.

It is a super-2 number, since 2×5115685851² = 52340483452243188402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5115685797 and 5115685806.

It is not an unprimeable number, because it can be changed into a prime (5115685853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1078260 + ... + 1082993.

It is an arithmetic number, because the mean of its divisors is an integer number (618118644).

Almost surely, 2^5115685851 is an apocalyptic number.

5115685851 is a deficient number, since it is larger than the sum of its proper divisors (2301737877).

5115685851 is a wasteful number, since it uses less digits than its factorization.

5115685851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161522 (or 2161519 counting only the distinct ones).

The product of its digits is 240000, while the sum is 45.

The square root of 5115685851 is about 71524.0228944094. The cubic root of 5115685851 is about 1723.0635247318.

The spelling of 5115685851 in words is "five billion, one hundred fifteen million, six hundred eighty-five thousand, eight hundred fifty-one".