6429550247 has 2 divisors, whose sum is σ = 6429550248. Its totient is φ = 6429550246.

The previous prime is 6429550187. The next prime is 6429550261. The reversal of 6429550247 is 7420559246.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6429550247 is a prime.

It is a super-2 number, since 2×6429550247² = 82678232757395522018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6429550198 and 6429550207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6429550147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214775123 + 3214775124.

It is an arithmetic number, because the mean of its divisors is an integer number (3214775124).

Almost surely, 2^6429550247 is an apocalyptic number.

6429550247 is a deficient number, since it is larger than the sum of its proper divisors (1).

6429550247 is an equidigital number, since it uses as much as digits as its factorization.

6429550247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 6429550247 is about 80184.4763467343. The cubic root of 6429550247 is about 1859.4886487913.

The spelling of 6429550247 in words is "six billion, four hundred twenty-nine million, five hundred fifty thousand, two hundred forty-seven".