34545441721 has 16 divisors (see below), whose sum is σ = 41243664384. Its totient is φ = 28290922704.

The previous prime is 34545441643. The next prime is 34545441743. The reversal of 34545441721 is 12714454543.

It is a cyclic number.

It is not a de Polignac number, because 34545441721 - 2¹³ = 34545433529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34545441761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21856 + ... + 263758.

It is an arithmetic number, because the mean of its divisors is an integer number (2577729024).

Almost surely, 2^34545441721 is an apocalyptic number.

It is an amenable number.

34545441721 is a deficient number, since it is larger than the sum of its proper divisors (6698222663).

34545441721 is a wasteful number, since it uses less digits than its factorization.

34545441721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242820.

The product of its digits is 268800, while the sum is 40.

The spelling of 34545441721 in words is "thirty-four billion, five hundred forty-five million, four hundred forty-one thousand, seven hundred twenty-one".