34020857867 has 2 divisors, whose sum is σ = 34020857868. Its totient is φ = 34020857866.

The previous prime is 34020857851. The next prime is 34020857879. The reversal of 34020857867 is 76875802043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34020857867 - 2⁴ = 34020857851 is a prime.

It is not a weakly prime, because it can be changed into another prime (34020857567) 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, 17010428933 + 17010428934.

It is an arithmetic number, because the mean of its divisors is an integer number (17010428934).

Almost surely, 2^34020857867 is an apocalyptic number.

34020857867 is a deficient number, since it is larger than the sum of its proper divisors (1).

34020857867 is an equidigital number, since it uses as much as digits as its factorization.

34020857867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 34020857867 in words is "thirty-four billion, twenty million, eight hundred fifty-seven thousand, eight hundred sixty-seven".