5216726645 has 12 divisors (see below), whose sum is σ = 6778658916. Its totient is φ = 3852351360.

The previous prime is 5216726611. The next prime is 5216726687. The reversal of 5216726645 is 5466276125.

It can be written as a sum of positive squares in 6 ways, for example, as 1767866116 + 3448860529 = 42046^2 + 58727^2 .

It is not a de Polignac number, because 5216726645 - 2²² = 5212532341 is a prime.

It is a super-3 number, since 3×5216726645³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5216726596 and 5216726605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3085976 + ... + 3087665.

It is an arithmetic number, because the mean of its divisors is an integer number (564888243).

Almost surely, 2^5216726645 is an apocalyptic number.

It is an amenable number.

5216726645 is a deficient number, since it is larger than the sum of its proper divisors (1561932271).

5216726645 is a wasteful number, since it uses less digits than its factorization.

5216726645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6173672 (or 6173659 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 5216726645 is about 72226.9108089222. The cubic root of 5216726645 is about 1734.3338217077. Note that the first 3 decimals are identical.

The spelling of 5216726645 in words is "five billion, two hundred sixteen million, seven hundred twenty-six thousand, six hundred forty-five".