34726138721 has 2 divisors, whose sum is σ = 34726138722. Its totient is φ = 34726138720.

The previous prime is 34726138717. The next prime is 34726138753. The reversal of 34726138721 is 12783162743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34631349025 + 94789696 = 186095^2 + 9736^2 .

It is a cyclic number.

It is not a de Polignac number, because 34726138721 - 2² = 34726138717 is a prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (34726138781) 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, 17363069360 + 17363069361.

It is an arithmetic number, because the mean of its divisors is an integer number (17363069361).

Almost surely, 2^34726138721 is an apocalyptic number.

It is an amenable number.

34726138721 is a deficient number, since it is larger than the sum of its proper divisors (1).

34726138721 is an equidigital number, since it uses as much as digits as its factorization.

34726138721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 44.

The spelling of 34726138721 in words is "thirty-four billion, seven hundred twenty-six million, one hundred thirty-eight thousand, seven hundred twenty-one".