5115863181 has 48 divisors (see below), whose sum is σ = 8188629120. Its totient is φ = 2821526400.

The previous prime is 5115863173. The next prime is 5115863197. The reversal of 5115863181 is 1813685115.

It is not a de Polignac number, because 5115863181 - 2³ = 5115863173 is a prime.

It is a super-2 number, since 2×5115863181² = 52344112173422877522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5115863101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 327415 + ... + 342683.

It is an arithmetic number, because the mean of its divisors is an integer number (170596440).

Almost surely, 2^5115863181 is an apocalyptic number.

It is an amenable number.

5115863181 is a deficient number, since it is larger than the sum of its proper divisors (3072765939).

5115863181 is a wasteful number, since it uses less digits than its factorization.

5115863181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15378 (or 15367 counting only the distinct ones).

The product of its digits is 28800, while the sum is 39.

The square root of 5115863181 is about 71525.2625370924. The cubic root of 5115863181 is about 1723.0834339114.

The spelling of 5115863181 in words is "five billion, one hundred fifteen million, eight hundred sixty-three thousand, one hundred eighty-one".