518931079553 has 8 divisors (see below), whose sum is σ = 548247070080. Its totient is φ = 490376543440.

The previous prime is 518931079549. The next prime is 518931079571. The reversal of 518931079553 is 355970139815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 518931079553 - 2² = 518931079549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (518931079153) 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 7 ways as a sum of consecutive naturals, for example, 190362203 + ... + 190364928.

It is an arithmetic number, because the mean of its divisors is an integer number (68530883760).

Almost surely, 2^518931079553 is an apocalyptic number.

It is an amenable number.

518931079553 is a deficient number, since it is larger than the sum of its proper divisors (29315990527).

518931079553 is a wasteful number, since it uses less digits than its factorization.

518931079553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380727207.

The product of its (nonzero) digits is 5103000, while the sum is 56.

The spelling of 518931079553 in words is "five hundred eighteen billion, nine hundred thirty-one million, seventy-nine thousand, five hundred fifty-three".