6978028147 has 2 divisors, whose sum is σ = 6978028148. Its totient is φ = 6978028146.

The previous prime is 6978028133. The next prime is 6978028151. The reversal of 6978028147 is 7418208796.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6978028147 - 2⁷ = 6978028019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6978028094 and 6978028103.

It is not a weakly prime, because it can be changed into another prime (6978028247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489014073 + 3489014074.

It is an arithmetic number, because the mean of its divisors is an integer number (3489014074).

Almost surely, 2^6978028147 is an apocalyptic number.

6978028147 is a deficient number, since it is larger than the sum of its proper divisors (1).

6978028147 is an equidigital number, since it uses as much as digits as its factorization.

6978028147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 6978028147 is about 83534.5925171123. The cubic root of 6978028147 is about 1910.9276258505.

The spelling of 6978028147 in words is "six billion, nine hundred seventy-eight million, twenty-eight thousand, one hundred forty-seven".