5216464861 has 2 divisors, whose sum is σ = 5216464862. Its totient is φ = 5216464860.

The previous prime is 5216464853. The next prime is 5216464931. The reversal of 5216464861 is 1684646125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4869387961 + 347076900 = 69781^2 + 18630^2 .

It is a cyclic number.

It is not a de Polignac number, because 5216464861 - 2³ = 5216464853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5216464961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2608232430 + 2608232431.

It is an arithmetic number, because the mean of its divisors is an integer number (2608232431).

Almost surely, 2^5216464861 is an apocalyptic number.

It is an amenable number.

5216464861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5216464861 is an equidigital number, since it uses as much as digits as its factorization.

5216464861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 43.

The square root of 5216464861 is about 72225.0985530653. The cubic root of 5216464861 is about 1734.3048106394.

The spelling of 5216464861 in words is "five billion, two hundred sixteen million, four hundred sixty-four thousand, eight hundred sixty-one".