45444312405 has 12 divisors (see below), whose sum is σ = 78770141580. Its totient is φ = 24236966592.

The previous prime is 45444312379. The next prime is 45444312409. The reversal of 45444312405 is 50421344454.

It can be written as a sum of positive squares in 2 ways, for example, as 19492068996 + 25952243409 = 139614^2 + 161097^2 .

It is not a de Polignac number, because 45444312405 - 2⁸ = 45444312149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45444312405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45444312409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504936760 + ... + 504936849.

It is an arithmetic number, because the mean of its divisors is an integer number (6564178465).

Almost surely, 2^45444312405 is an apocalyptic number.

45444312405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45444312405 is a deficient number, since it is larger than the sum of its proper divisors (33325829175).

45444312405 is a wasteful number, since it uses less digits than its factorization.

45444312405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009873620 (or 1009873617 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 45444312405 its reverse (50421344454), we get a palindrome (95865656859).

The spelling of 45444312405 in words is "forty-five billion, four hundred forty-four million, three hundred twelve thousand, four hundred five".