516845579311 has 4 divisors (see below), whose sum is σ = 518079101400. Its totient is φ = 515612057224.

The previous prime is 516845579287. The next prime is 516845579351. The reversal of 516845579311 is 113975548615.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 516845579311 - 2¹⁵ = 516845546543 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 (516845579351) 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, 616760416 + ... + 616761253.

It is an arithmetic number, because the mean of its divisors is an integer number (129519775350).

Almost surely, 2^516845579311 is an apocalyptic number.

516845579311 is a deficient number, since it is larger than the sum of its proper divisors (1233522089).

516845579311 is a wasteful number, since it uses less digits than its factorization.

516845579311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233522088.

The product of its digits is 4536000, while the sum is 55.

The spelling of 516845579311 in words is "five hundred sixteen billion, eight hundred forty-five million, five hundred seventy-nine thousand, three hundred eleven".