34731721457 has 2 divisors, whose sum is σ = 34731721458. Its totient is φ = 34731721456.

The previous prime is 34731721433. The next prime is 34731721469. The reversal of 34731721457 is 75412713743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33626757376 + 1104964081 = 183376^2 + 33241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34731721457 is a prime.

It is not a weakly prime, because it can be changed into another prime (34731721417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17365860728 + 17365860729.

It is an arithmetic number, because the mean of its divisors is an integer number (17365860729).

Almost surely, 2^34731721457 is an apocalyptic number.

It is an amenable number.

34731721457 is a deficient number, since it is larger than the sum of its proper divisors (1).

34731721457 is an equidigital number, since it uses as much as digits as its factorization.

34731721457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 493920, while the sum is 44.

The spelling of 34731721457 in words is "thirty-four billion, seven hundred thirty-one million, seven hundred twenty-one thousand, four hundred fifty-seven".