6557469278747 has 2 divisors, whose sum is σ = 6557469278748. Its totient is φ = 6557469278746.

The previous prime is 6557469278743. The next prime is 6557469278761. The reversal of 6557469278747 is 7478729647556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6557469278747 - 2² = 6557469278743 is a prime.

It is not a weakly prime, because it can be changed into another prime (6557469278743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278734639373 + 3278734639374.

It is an arithmetic number, because the mean of its divisors is an integer number (3278734639374).

Almost surely, 2^{6557469278747} is an apocalyptic number.

6557469278747 is a deficient number, since it is larger than the sum of its proper divisors (1).

6557469278747 is an equidigital number, since it uses as much as digits as its factorization.

6557469278747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4978713600, while the sum is 77.

The spelling of 6557469278747 in words is "six trillion, five hundred fifty-seven billion, four hundred sixty-nine million, two hundred seventy-eight thousand, seven hundred forty-seven".