6338690243953 has 2 divisors, whose sum is σ = 6338690243954. Its totient is φ = 6338690243952.

The previous prime is 6338690243939. The next prime is 6338690244001. The reversal of 6338690243953 is 3593420968336.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6181329667984 + 157360575969 = 2486228^2 + 396687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6338690243953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6338690243891 and 6338690243900.

It is not a weakly prime, because it can be changed into another prime (6338690243453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3169345121976 + 3169345121977.

It is an arithmetic number, because the mean of its divisors is an integer number (3169345121977).

Almost surely, 2^{6338690243953} is an apocalyptic number.

It is an amenable number.

6338690243953 is a deficient number, since it is larger than the sum of its proper divisors (1).

6338690243953 is an equidigital number, since it uses as much as digits as its factorization.

6338690243953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75582720, while the sum is 61.

The spelling of 6338690243953 in words is "six trillion, three hundred thirty-eight billion, six hundred ninety million, two hundred forty-three thousand, nine hundred fifty-three".