5217689745 has 24 divisors (see below), whose sum is σ = 9046814400. Its totient is φ = 2781900576.

The previous prime is 5217689699. The next prime is 5217689767. The reversal of 5217689745 is 5479867125.

5217689745 is a `hidden beast` number, since 521 + 76 + 8 + 9 + 7 + 45 = 666.

It is not a de Polignac number, because 5217689745 - 2⁶ = 5217689681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5217689691 and 5217689700.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143866 + ... + 176444.

It is an arithmetic number, because the mean of its divisors is an integer number (376950600).

Almost surely, 2^5217689745 is an apocalyptic number.

It is an amenable number.

5217689745 is a deficient number, since it is larger than the sum of its proper divisors (3829124655).

5217689745 is a wasteful number, since it uses less digits than its factorization.

5217689745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36149 (or 36146 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 5217689745 is about 72233.5776837891. The cubic root of 5217689745 is about 1734.4405447058.

The spelling of 5217689745 in words is "five billion, two hundred seventeen million, six hundred eighty-nine thousand, seven hundred forty-five".