4818406937569 has 9 divisors (see below), whose sum is σ = 4850861932371. Its totient is φ = 4786167694800.

The previous prime is 4818406937549. The next prime is 4818406937581. The reversal of 4818406937569 is 9657396048184.

It is a happy number.

The square root of 4818406937569 is 2195087.

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

It can be written as a sum of positive squares in only one way, i.e., 1147780109025 + 3670626828544 = 1071345^2 + 1915888^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4818406937569 is a prime.

It is a super-2 number, since 2×4818406937569² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4818406937498 and 4818406937507.

It is not an unprimeable number, because it can be changed into a prime (4818406937549) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 331450869 + ... + 331465405.

Almost surely, 2^{4818406937569} is an apocalyptic number.

4818406937569 is the 2195087-th square number.

4818406937569 is the 1097544-th centered octagonal number.

It is an amenable number.

4818406937569 is a deficient number, since it is larger than the sum of its proper divisors (32454994802).

4818406937569 is an frugal number, since it uses more digits than its factorization.

4818406937569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29376 (or 14688 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 70.

The spelling of 4818406937569 in words is "four trillion, eight hundred eighteen billion, four hundred six million, nine hundred thirty-seven thousand, five hundred sixty-nine".