513666038042 has 8 divisors (see below), whose sum is σ = 783130189332. Its totient is φ = 252622641600.

The previous prime is 513666037999. The next prime is 513666038047. The reversal of 513666038042 is 240830666315.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 365324745241 + 148341292801 = 604421^2 + 385151^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 513666037984 and 513666038002.

It is not an unprimeable number, because it can be changed into a prime (513666038047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105188559 + ... + 2105188802.

Almost surely, 2^513666038042 is an apocalyptic number.

513666038042 is a deficient number, since it is larger than the sum of its proper divisors (269464151290).

513666038042 is a wasteful number, since it uses less digits than its factorization.

513666038042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210377424.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 513666038042 in words is "five hundred thirteen billion, six hundred sixty-six million, thirty-eight thousand, forty-two".