67277778383 has 2 divisors, whose sum is σ = 67277778384. Its totient is φ = 67277778382.

The previous prime is 67277778301. The next prime is 67277778389. The reversal of 67277778383 is 38387777276.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67277778383 - 2¹⁶ = 67277712847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67277778389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33638889191 + 33638889192.

It is an arithmetic number, because the mean of its divisors is an integer number (33638889192).

Almost surely, 2^67277778383 is an apocalyptic number.

67277778383 is a deficient number, since it is larger than the sum of its proper divisors (1).

67277778383 is an equidigital number, since it uses as much as digits as its factorization.

67277778383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116169984, while the sum is 65.

The spelling of 67277778383 in words is "sixty-seven billion, two hundred seventy-seven million, seven hundred seventy-eight thousand, three hundred eighty-three".