516801374009 has 4 divisors (see below), whose sum is σ = 517387982580. Its totient is φ = 516214765440.

The previous prime is 516801373999. The next prime is 516801374017. The reversal of 516801374009 is 900473108615.

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

It can be written as a sum of positive squares in 2 ways, for example, as 101127180025 + 415674193984 = 318005^2 + 644728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516801374009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (516801379009) 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, 293302964 + ... + 293304725.

It is an arithmetic number, because the mean of its divisors is an integer number (129346995645).

Almost surely, 2^516801374009 is an apocalyptic number.

It is an amenable number.

516801374009 is a deficient number, since it is larger than the sum of its proper divisors (586608571).

516801374009 is an equidigital number, since it uses as much as digits as its factorization.

516801374009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586608570.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 516801374009 in words is "five hundred sixteen billion, eight hundred one million, three hundred seventy-four thousand, nine".