516877809 has 32 divisors (see below), whose sum is σ = 838874880. Its totient is φ = 276344832.

The previous prime is 516877807. The next prime is 516877813. The reversal of 516877809 is 908778615.

It is not a de Polignac number, because 516877809 - 2¹ = 516877807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (516877807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57577 + ... + 65945.

It is an arithmetic number, because the mean of its divisors is an integer number (26214840).

Almost surely, 2^516877809 is an apocalyptic number.

It is an amenable number.

516877809 is a deficient number, since it is larger than the sum of its proper divisors (321997071).

516877809 is a wasteful number, since it uses less digits than its factorization.

516877809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8569.

The product of its (nonzero) digits is 846720, while the sum is 51.

The square root of 516877809 is about 22734.9468660034. The cubic root of 516877809 is about 802.5325001152.

The spelling of 516877809 in words is "five hundred sixteen million, eight hundred seventy-seven thousand, eight hundred nine".