516492271805 has 4 divisors (see below), whose sum is σ = 619790726172. Its totient is φ = 413193817440.

The previous prime is 516492271787. The next prime is 516492271811. The reversal of 516492271805 is 508172294615.

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 302917043641 + 213575228164 = 550379^2 + 462142^2 .

It is a de Polignac number, because none of the positive numbers 2^k-516492271805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51649227176 + ... + 51649227185.

It is an arithmetic number, because the mean of its divisors is an integer number (154947681543).

Almost surely, 2^516492271805 is an apocalyptic number.

It is an amenable number.

516492271805 is a deficient number, since it is larger than the sum of its proper divisors (103298454367).

516492271805 is a wasteful number, since it uses less digits than its factorization.

516492271805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103298454366.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 516492271805 in words is "five hundred sixteen billion, four hundred ninety-two million, two hundred seventy-one thousand, eight hundred five".