30401778067 has 2 divisors, whose sum is σ = 30401778068. Its totient is φ = 30401778066.

The previous prime is 30401778037. The next prime is 30401778073. The reversal of 30401778067 is 76087710403.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30401778067 is a prime.

It is not a weakly prime, because it can be changed into another prime (30401778037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15200889033 + 15200889034.

It is an arithmetic number, because the mean of its divisors is an integer number (15200889034).

Almost surely, 2^30401778067 is an apocalyptic number.

30401778067 is a deficient number, since it is larger than the sum of its proper divisors (1).

30401778067 is an equidigital number, since it uses as much as digits as its factorization.

30401778067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 30401778067 in words is "thirty billion, four hundred one million, seven hundred seventy-eight thousand, sixty-seven".