45444263291 has 4 divisors (see below), whose sum is σ = 51936300912. Its totient is φ = 38952225672.

The previous prime is 45444263261. The next prime is 45444263299. The reversal of 45444263291 is 19236244454.

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

It is a cyclic number.

It is not a de Polignac number, because 45444263291 - 2¹⁸ = 45444001147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45444263299) 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, 3246018800 + ... + 3246018813.

It is an arithmetic number, because the mean of its divisors is an integer number (12984075228).

Almost surely, 2^45444263291 is an apocalyptic number.

45444263291 is a deficient number, since it is larger than the sum of its proper divisors (6492037621).

45444263291 is an equidigital number, since it uses as much as digits as its factorization.

45444263291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6492037620.

The product of its digits is 829440, while the sum is 44.

The spelling of 45444263291 in words is "forty-five billion, four hundred forty-four million, two hundred sixty-three thousand, two hundred ninety-one".