6240857429 has 2 divisors, whose sum is σ = 6240857430. Its totient is φ = 6240857428.

The previous prime is 6240857419. The next prime is 6240857443. The reversal of 6240857429 is 9247580426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4070695204 + 2170162225 = 63802^2 + 46585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6240857429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6240857419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3120428714 + 3120428715.

It is an arithmetic number, because the mean of its divisors is an integer number (3120428715).

Almost surely, 2^6240857429 is an apocalyptic number.

It is an amenable number.

6240857429 is a deficient number, since it is larger than the sum of its proper divisors (1).

6240857429 is an equidigital number, since it uses as much as digits as its factorization.

6240857429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 6240857429 is about 78999.0976467453. The cubic root of 6240857429 is about 1841.1171371565.

The spelling of 6240857429 in words is "six billion, two hundred forty million, eight hundred fifty-seven thousand, four hundred twenty-nine".