518390928029 has 12 divisors (see below), whose sum is σ = 561569958900. Its totient is φ = 478314031104.

The previous prime is 518390927911. The next prime is 518390928079. The reversal of 518390928029 is 920829093815.

It can be written as a sum of positive squares in 6 ways, for example, as 89466792100 + 428924135929 = 299110^2 + 654923^2 .

It is not a de Polignac number, because 518390928029 - 2⁸ = 518390927773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518390928079) 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 11 ways as a sum of consecutive naturals, for example, 238244 + ... + 1045725.

It is an arithmetic number, because the mean of its divisors is an integer number (46797496575).

Almost surely, 2^518390928029 is an apocalyptic number.

It is an amenable number.

518390928029 is a deficient number, since it is larger than the sum of its proper divisors (43179030871).

518390928029 is a wasteful number, since it uses less digits than its factorization.

518390928029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286384 (or 1286371 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 56.

The spelling of 518390928029 in words is "five hundred eighteen billion, three hundred ninety million, nine hundred twenty-eight thousand, twenty-nine".