5318646468136 has 32 divisors (see below), whose sum is σ = 10088306139240. Its totient is φ = 2628502437888.

The previous prime is 5318646468073. The next prime is 5318646468137. The reversal of 5318646468136 is 6318646468135.

It can be written as a sum of positive squares in 4 ways, for example, as 3427333905636 + 1891312562500 = 1851306^2 + 1375250^2 .

It is not an unprimeable number, because it can be changed into a prime (5318646468137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3833481 + ... + 5033176.

Almost surely, 2^{5318646468136} is an apocalyptic number.

It is an amenable number.

5318646468136 is a deficient number, since it is larger than the sum of its proper divisors (4769659671104).

5318646468136 is a wasteful number, since it uses less digits than its factorization.

5318646468136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8867533 (or 8867529 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 61.

Subtracting 5318646468136 from its reverse (6318646468135), we obtain a palindrome (999999999999).

The spelling of 5318646468136 in words is "five trillion, three hundred eighteen billion, six hundred forty-six million, four hundred sixty-eight thousand, one hundred thirty-six".