516836868837 has 4 divisors (see below), whose sum is σ = 689115825120. Its totient is φ = 344557912556.

The previous prime is 516836868833. The next prime is 516836868859. The reversal of 516836868837 is 738868638615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 516836868837 - 2² = 516836868833 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516836868833) 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 3 ways as a sum of consecutive naturals, for example, 86139478137 + ... + 86139478142.

It is an arithmetic number, because the mean of its divisors is an integer number (172278956280).

Almost surely, 2^516836868837 is an apocalyptic number.

It is an amenable number.

516836868837 is a deficient number, since it is larger than the sum of its proper divisors (172278956283).

516836868837 is a wasteful number, since it uses less digits than its factorization.

516836868837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172278956282.

The product of its digits is 278691840, while the sum is 69.

The spelling of 516836868837 in words is "five hundred sixteen billion, eight hundred thirty-six million, eight hundred sixty-eight thousand, eight hundred thirty-seven".