6494978827 has 2 divisors, whose sum is σ = 6494978828. Its totient is φ = 6494978826.

The previous prime is 6494978807. The next prime is 6494978869. The reversal of 6494978827 is 7288794946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6494978827 - 2¹¹ = 6494976779 is a prime.

It is not a weakly prime, because it can be changed into another prime (6494978807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3247489413 + 3247489414.

It is an arithmetic number, because the mean of its divisors is an integer number (3247489414).

Almost surely, 2^6494978827 is an apocalyptic number.

6494978827 is a deficient number, since it is larger than the sum of its proper divisors (1).

6494978827 is an equidigital number, since it uses as much as digits as its factorization.

6494978827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48771072, while the sum is 64.

The square root of 6494978827 is about 80591.4314738236. The cubic root of 6494978827 is about 1865.7749011728.

The spelling of 6494978827 in words is "six billion, four hundred ninety-four million, nine hundred seventy-eight thousand, eight hundred twenty-seven".