34353721663 has 16 divisors (see below), whose sum is σ = 35160090336. Its totient is φ = 33557391360.

The previous prime is 34353721651. The next prime is 34353721681. The reversal of 34353721663 is 36612735343.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-34353721663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34353721643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16044573 + ... + 16046713.

It is an arithmetic number, because the mean of its divisors is an integer number (2197505646).

Almost surely, 2^34353721663 is an apocalyptic number.

34353721663 is a deficient number, since it is larger than the sum of its proper divisors (806368673).

34353721663 is a wasteful number, since it uses less digits than its factorization.

34353721663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314.

The product of its digits is 816480, while the sum is 43.

The spelling of 34353721663 in words is "thirty-four billion, three hundred fifty-three million, seven hundred twenty-one thousand, six hundred sixty-three".