6389657149 has 2 divisors, whose sum is σ = 6389657150. Its totient is φ = 6389657148.

The previous prime is 6389657137. The next prime is 6389657161. The reversal of 6389657149 is 9417569836.

It is a balanced prime because it is at equal distance from previous prime (6389657137) and next prime (6389657161).

It can be written as a sum of positive squares in only one way, i.e., 5947185924 + 442471225 = 77118^2 + 21035^2 .

It is a cyclic number.

It is not a de Polignac number, because 6389657149 - 2¹⁹ = 6389132861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6389657093 and 6389657102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6389687149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194828574 + 3194828575.

It is an arithmetic number, because the mean of its divisors is an integer number (3194828575).

Almost surely, 2^6389657149 is an apocalyptic number.

It is an amenable number.

6389657149 is a deficient number, since it is larger than the sum of its proper divisors (1).

6389657149 is an equidigital number, since it uses as much as digits as its factorization.

6389657149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 58.

The square root of 6389657149 is about 79935.3310432877. The cubic root of 6389657149 is about 1855.6348429036.

The spelling of 6389657149 in words is "six billion, three hundred eighty-nine million, six hundred fifty-seven thousand, one hundred forty-nine".