45444344413 has 4 divisors (see below), whose sum is σ = 48940063228. Its totient is φ = 41948625600.

The previous prime is 45444344371. The next prime is 45444344447. The reversal of 45444344413 is 31444344454.

45444344413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7739248729 + 37705095684 = 87973^2 + 194178^2 .

It is a cyclic number.

It is not a de Polignac number, because 45444344413 - 2¹³ = 45444336221 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 (45444344213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1747859388 + ... + 1747859413.

It is an arithmetic number, because the mean of its divisors is an integer number (12235015807).

Almost surely, 2^45444344413 is an apocalyptic number.

It is an amenable number.

45444344413 is a deficient number, since it is larger than the sum of its proper divisors (3495718815).

45444344413 is a wasteful number, since it uses less digits than its factorization.

45444344413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495718814.

The product of its digits is 737280, while the sum is 40.

Adding to 45444344413 its reverse (31444344454), we get a palindrome (76888688867).

The spelling of 45444344413 in words is "forty-five billion, four hundred forty-four million, three hundred forty-four thousand, four hundred thirteen".