518209780079 has 8 divisors (see below), whose sum is σ = 523409507712. Its totient is φ = 513035730720.

The previous prime is 518209780073. The next prime is 518209780093. The reversal of 518209780079 is 970087902815.

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 518209780079 - 2¹⁶ = 518209714543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518209780073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6379004 + ... + 6459729.

It is an arithmetic number, because the mean of its divisors is an integer number (65426188464).

Almost surely, 2^518209780079 is an apocalyptic number.

518209780079 is a deficient number, since it is larger than the sum of its proper divisors (5199727633).

518209780079 is a wasteful number, since it uses less digits than its factorization.

518209780079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12839137.

The product of its (nonzero) digits is 2540160, while the sum is 56.

The spelling of 518209780079 in words is "five hundred eighteen billion, two hundred nine million, seven hundred eighty thousand, seventy-nine".