34720123747 has 2 divisors, whose sum is σ = 34720123748. Its totient is φ = 34720123746.

The previous prime is 34720123733. The next prime is 34720123793. The reversal of 34720123747 is 74732102743.

It is a weak prime.

It is an emirp because it is prime and its reverse (74732102743) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34720123747 - 2³¹ = 32572640099 is a prime.

It is not a weakly prime, because it can be changed into another prime (34720163747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17360061873 + 17360061874.

It is an arithmetic number, because the mean of its divisors is an integer number (17360061874).

Almost surely, 2^34720123747 is an apocalyptic number.

34720123747 is a deficient number, since it is larger than the sum of its proper divisors (1).

34720123747 is an equidigital number, since it uses as much as digits as its factorization.

34720123747 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 40.

The spelling of 34720123747 in words is "thirty-four billion, seven hundred twenty million, one hundred twenty-three thousand, seven hundred forty-seven".