45045923213 has 8 divisors (see below), whose sum is σ = 49340362680. Its totient is φ = 40934225920.

The previous prime is 45045923149. The next prime is 45045923287. The reversal of 45045923213 is 31232954054.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1722831049 + 43323092164 = 41507^2 + 208142^2 .

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 45045923213 - 2⁶ = 45045923149 is a prime.

It is a super-2 number, since 2×45045923213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45045923513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45685028 + ... + 45686013.

It is an arithmetic number, because the mean of its divisors is an integer number (6167545335).

Almost surely, 2^45045923213 is an apocalyptic number.

It is an amenable number.

45045923213 is a deficient number, since it is larger than the sum of its proper divisors (4294439467).

45045923213 is a wasteful number, since it uses less digits than its factorization.

45045923213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91371087.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 45045923213 in words is "forty-five billion, forty-five million, nine hundred twenty-three thousand, two hundred thirteen".