6457015729 has 2 divisors, whose sum is σ = 6457015730. Its totient is φ = 6457015728.

The previous prime is 6457015703. The next prime is 6457015739. The reversal of 6457015729 is 9275107546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3953014129 + 2504001600 = 62873^2 + 50040^2 .

It is a cyclic number.

It is not a de Polignac number, because 6457015729 - 2¹³ = 6457007537 is a prime.

It is not a weakly prime, because it can be changed into another prime (6457015739) 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 as a sum of consecutive naturals, namely, 3228507864 + 3228507865.

It is an arithmetic number, because the mean of its divisors is an integer number (3228507865).

Almost surely, 2^6457015729 is an apocalyptic number.

It is an amenable number.

6457015729 is a deficient number, since it is larger than the sum of its proper divisors (1).

6457015729 is an equidigital number, since it uses as much as digits as its factorization.

6457015729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 46.

The square root of 6457015729 is about 80355.5581711682. The cubic root of 6457015729 is about 1862.1326492835.

The spelling of 6457015729 in words is "six billion, four hundred fifty-seven million, fifteen thousand, seven hundred twenty-nine".