6548668429 has 2 divisors, whose sum is σ = 6548668430. Its totient is φ = 6548668428.

The previous prime is 6548668417. The next prime is 6548668471. The reversal of 6548668429 is 9248668456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6544486404 + 4182025 = 80898^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 6548668429 - 2⁵ = 6548668397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6548668229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274334214 + 3274334215.

It is an arithmetic number, because the mean of its divisors is an integer number (3274334215).

Almost surely, 2^6548668429 is an apocalyptic number.

It is an amenable number.

6548668429 is a deficient number, since it is larger than the sum of its proper divisors (1).

6548668429 is an equidigital number, since it uses as much as digits as its factorization.

6548668429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19906560, while the sum is 58.

The square root of 6548668429 is about 80923.8433899429. The cubic root of 6548668429 is about 1870.9018335890.

The spelling of 6548668429 in words is "six billion, five hundred forty-eight million, six hundred sixty-eight thousand, four hundred twenty-nine".