45446231449 has 4 divisors (see below), whose sum is σ = 45474408036. Its totient is φ = 45418054864.

The previous prime is 45446231447. The next prime is 45446231459. The reversal of 45446231449 is 94413264454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94413264454 = 2 ⋅47206632227.

It can be written as a sum of positive squares in 2 ways, for example, as 32297481225 + 13148750224 = 179715^2 + 114668^2 .

It is a cyclic number.

It is not a de Polignac number, because 45446231449 - 2¹ = 45446231447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45446231399 and 45446231408.

It is not an unprimeable number, because it can be changed into a prime (45446231447) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14085874 + ... + 14089099.

It is an arithmetic number, because the mean of its divisors is an integer number (11368602009).

Almost surely, 2^45446231449 is an apocalyptic number.

It is an amenable number.

45446231449 is a deficient number, since it is larger than the sum of its proper divisors (28176587).

45446231449 is a wasteful number, since it uses less digits than its factorization.

45446231449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28176586.

The product of its digits is 1658880, while the sum is 46.

The spelling of 45446231449 in words is "forty-five billion, four hundred forty-six million, two hundred thirty-one thousand, four hundred forty-nine".