45172209809307 has 54 divisors (see below), whose sum is σ = 70274600035668. Its totient is φ = 25734974928768.

The previous prime is 45172209809297. The next prime is 45172209809359. The reversal of 45172209809307 is 70390890227154.

It is a happy number.

It is not a de Polignac number, because 45172209809307 - 2³⁰ = 45171136067483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45172209801307) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 37240073433 + ... + 37240074645.

It is an arithmetic number, because the mean of its divisors is an integer number (1301381482142).

Almost surely, 2^{45172209809307} is an apocalyptic number.

45172209809307 is a deficient number, since it is larger than the sum of its proper divisors (25102390226361).

45172209809307 is an frugal number, since it uses more digits than its factorization.

45172209809307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357 (or 1680 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 45172209809307 in words is "forty-five trillion, one hundred seventy-two billion, two hundred nine million, eight hundred nine thousand, three hundred seven".