34172789389 has 2 divisors, whose sum is σ = 34172789390. Its totient is φ = 34172789388.

The previous prime is 34172789351. The next prime is 34172789401. The reversal of 34172789389 is 98398727143.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29752800100 + 4419989289 = 172490^2 + 66483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34172789389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34172789689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17086394694 + 17086394695.

It is an arithmetic number, because the mean of its divisors is an integer number (17086394695).

Almost surely, 2^34172789389 is an apocalyptic number.

It is an amenable number.

34172789389 is a deficient number, since it is larger than the sum of its proper divisors (1).

34172789389 is an equidigital number, since it uses as much as digits as its factorization.

34172789389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18289152, while the sum is 61.

The spelling of 34172789389 in words is "thirty-four billion, one hundred seventy-two million, seven hundred eighty-nine thousand, three hundred eighty-nine".