516467883649 has 3 divisors (see below), whose sum is σ = 516468602307. Its totient is φ = 516467164992.

The previous prime is 516467883571. The next prime is 516467883683. The reversal of 516467883649 is 946388764615.

The square root of 516467883649 is 718657.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 108698793025 + 407769090624 = 329695^2 + 638568^2 .

It is not a de Polignac number, because 516467883649 - 2⁷ = 516467883521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516467883689) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 359329 + ... + 1077985.

It is an arithmetic number, because the mean of its divisors is an integer number (172156200769).

Almost surely, 2^516467883649 is an apocalyptic number.

516467883649 is the 718657-th square number.

516467883649 is the 359329-th centered octagonal number.

It is an amenable number.

516467883649 is a deficient number, since it is larger than the sum of its proper divisors (718658).

516467883649 is an frugal number, since it uses more digits than its factorization.

516467883649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437314 (or 718657 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 67.

The spelling of 516467883649 in words is "five hundred sixteen billion, four hundred sixty-seven million, eight hundred eighty-three thousand, six hundred forty-nine".