734144071721 has 4 divisors (see below), whose sum is σ = 751217189712. Its totient is φ = 717070953732.

The previous prime is 734144071697. The next prime is 734144071777. The reversal of 734144071721 is 127170441437.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 127170441437 = 13 ⋅9782341649.

It is a cyclic number.

It is not a de Polignac number, because 734144071721 - 2¹⁰ = 734144070697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (734144071781) 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 in 3 ways as a sum of consecutive naturals, for example, 8536558931 + ... + 8536559016.

It is an arithmetic number, because the mean of its divisors is an integer number (187804297428).

Almost surely, 2^734144071721 is an apocalyptic number.

It is an amenable number.

734144071721 is a deficient number, since it is larger than the sum of its proper divisors (17073117991).

734144071721 is a wasteful number, since it uses less digits than its factorization.

734144071721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17073117990.

The product of its (nonzero) digits is 131712, while the sum is 41.

The spelling of 734144071721 in words is "seven hundred thirty-four billion, one hundred forty-four million, seventy-one thousand, seven hundred twenty-one".