6338158549 has 2 divisors, whose sum is σ = 6338158550. Its totient is φ = 6338158548.

The previous prime is 6338158543. The next prime is 6338158627. The reversal of 6338158549 is 9458518336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4336222500 + 2001936049 = 65850^2 + 44743^2 .

It is a cyclic number.

It is not a de Polignac number, because 6338158549 - 2¹¹ = 6338156501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6338158496 and 6338158505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6338158543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3169079274 + 3169079275.

It is an arithmetic number, because the mean of its divisors is an integer number (3169079275).

Almost surely, 2^6338158549 is an apocalyptic number.

It is an amenable number.

6338158549 is a deficient number, since it is larger than the sum of its proper divisors (1).

6338158549 is an equidigital number, since it uses as much as digits as its factorization.

6338158549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 52.

The square root of 6338158549 is about 79612.5527099841. The cubic root of 6338158549 is about 1850.6361142423.

The spelling of 6338158549 in words is "six billion, three hundred thirty-eight million, one hundred fifty-eight thousand, five hundred forty-nine".