201634928945 has 8 divisors (see below), whose sum is σ = 242816905536. Its totient is φ = 160737949296.

The previous prime is 201634928909. The next prime is 201634928959. The reversal of 201634928945 is 549829436102.

201634928945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201634928945 - 2³⁰ = 200561187121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 71247677 + ... + 71250506.

It is an arithmetic number, because the mean of its divisors is an integer number (30352113192).

Almost surely, 2^201634928945 is an apocalyptic number.

It is an amenable number.

201634928945 is a deficient number, since it is larger than the sum of its proper divisors (41181976591).

201634928945 is a wasteful number, since it uses less digits than its factorization.

201634928945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142498471.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 201634928945 in words is "two hundred one billion, six hundred thirty-four million, nine hundred twenty-eight thousand, nine hundred forty-five".