518948857479 has 16 divisors (see below), whose sum is σ = 745178464352. Its totient is φ = 319344087168.

The previous prime is 518948857451. The next prime is 518948857529. The reversal of 518948857479 is 974758849815.

It is not a de Polignac number, because 518948857479 - 2¹⁹ = 518948333191 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 518948857479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518948857429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366569 + ... + 1704525.

It is an arithmetic number, because the mean of its divisors is an integer number (46573654022).

Almost surely, 2^518948857479 is an apocalyptic number.

518948857479 is a deficient number, since it is larger than the sum of its proper divisors (226229606873).

518948857479 is a wasteful number, since it uses less digits than its factorization.

518948857479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377346.

The product of its digits is 812851200, while the sum is 75.

The spelling of 518948857479 in words is "five hundred eighteen billion, nine hundred forty-eight million, eight hundred fifty-seven thousand, four hundred seventy-nine".