5118940643 has 16 divisors (see below), whose sum is σ = 5256576000. Its totient is φ = 4983456192.

The previous prime is 5118940637. The next prime is 5118940699. The reversal of 5118940643 is 3460498115.

It is a cyclic number.

It is not a de Polignac number, because 5118940643 - 2¹⁰ = 5118939619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5118940643.

It is not an unprimeable number, because it can be changed into a prime (5118940243) 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 15 ways as a sum of consecutive naturals, for example, 3282698 + ... + 3284256.

It is an arithmetic number, because the mean of its divisors is an integer number (328536000).

Almost surely, 2^5118940643 is an apocalyptic number.

5118940643 is a deficient number, since it is larger than the sum of its proper divisors (137635357).

5118940643 is a wasteful number, since it uses less digits than its factorization.

5118940643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 5118940643 is about 71546.7724149734. The cubic root of 5118940643 is about 1723.4288732288.

The spelling of 5118940643 in words is "five billion, one hundred eighteen million, nine hundred forty thousand, six hundred forty-three".