6550680847 has 2 divisors, whose sum is σ = 6550680848. Its totient is φ = 6550680846.

The previous prime is 6550680841. The next prime is 6550680889. The reversal of 6550680847 is 7480860556.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6550680847 is a prime.

It is a super-2 number, since 2×6550680847² = 85822839118505274818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6550680847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6550680841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275340423 + 3275340424.

It is an arithmetic number, because the mean of its divisors is an integer number (3275340424).

Almost surely, 2^6550680847 is an apocalyptic number.

6550680847 is a deficient number, since it is larger than the sum of its proper divisors (1).

6550680847 is an equidigital number, since it uses as much as digits as its factorization.

6550680847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The square root of 6550680847 is about 80936.2764587055. The cubic root of 6550680847 is about 1871.0934578337.

The spelling of 6550680847 in words is "six billion, five hundred fifty million, six hundred eighty thousand, eight hundred forty-seven".