233618640225313 has 6 divisors (see below), whose sum is σ = 271760459037666. Its totient is φ = 200244548764512.

The previous prime is 233618640225277. The next prime is 233618640225389. The reversal of 233618640225313 is 313522046816332.

It can be written as a sum of positive squares in only one way, i.e., 144637471947024 + 88981168278289 = 12026532^2 + 9432983^2 .

It is a de Polignac number, because none of the positive numbers 2^k-233618640225313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 4767727351537 = 233618640225313 / (2 + 3 + 3 + 6 + 1 + 8 + 6 + 4 + 0 + 2 + 2 + 5 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233618640225013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2383863675720 + ... + 2383863675817.

It is an arithmetic number, because the mean of its divisors is an integer number (45293409839611).

Almost surely, 2^{233618640225313} is an apocalyptic number.

It is an amenable number.

233618640225313 is a deficient number, since it is larger than the sum of its proper divisors (38141818812353).

233618640225313 is an equidigital number, since it uses as much as digits as its factorization.

233618640225313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4767727351551 (or 4767727351544 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 233618640225313 in words is "two hundred thirty-three trillion, six hundred eighteen billion, six hundred forty million, two hundred twenty-five thousand, three hundred thirteen".