518157340043 has 4 divisors (see below), whose sum is σ = 592179817200. Its totient is φ = 444134862888.

The previous prime is 518157340039. The next prime is 518157340073. The reversal of 518157340043 is 340043751815.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340043751815 = 5 ⋅68008750363.

It is a cyclic number.

It is not a de Polignac number, because 518157340043 - 2² = 518157340039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (518157340073) 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 3 ways as a sum of consecutive naturals, for example, 37011238568 + ... + 37011238581.

It is an arithmetic number, because the mean of its divisors is an integer number (148044954300).

Almost surely, 2^518157340043 is an apocalyptic number.

518157340043 is a deficient number, since it is larger than the sum of its proper divisors (74022477157).

518157340043 is an equidigital number, since it uses as much as digits as its factorization.

518157340043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74022477156.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 518157340043 in words is "five hundred eighteen billion, one hundred fifty-seven million, three hundred forty thousand, forty-three".