6778005371 has 2 divisors, whose sum is σ = 6778005372. Its totient is φ = 6778005370.

The previous prime is 6778005361. The next prime is 6778005391. The reversal of 6778005371 is 1735008776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6778005371 - 2¹⁸ = 6777743227 is a prime.

It is not a weakly prime, because it can be changed into another prime (6778005341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3389002685 + 3389002686.

It is an arithmetic number, because the mean of its divisors is an integer number (3389002686).

Almost surely, 2^6778005371 is an apocalyptic number.

6778005371 is a deficient number, since it is larger than the sum of its proper divisors (1).

6778005371 is an equidigital number, since it uses as much as digits as its factorization.

6778005371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 44.

The square root of 6778005371 is about 82328.6424702849. The cubic root of 6778005371 is about 1892.4916393400.

The spelling of 6778005371 in words is "six billion, seven hundred seventy-eight million, five thousand, three hundred seventy-one".