45444535421 has 4 divisors (see below), whose sum is σ = 45449017152. Its totient is φ = 45440053692.

The previous prime is 45444535403. The next prime is 45444535469. The reversal of 45444535421 is 12453544454.

45444535421 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45444535421 - 2¹⁰ = 45444534397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45444535471) 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, 2225621 + ... + 2245946.

It is an arithmetic number, because the mean of its divisors is an integer number (11362254288).

Almost surely, 2^45444535421 is an apocalyptic number.

It is an amenable number.

45444535421 is a deficient number, since it is larger than the sum of its proper divisors (4481731).

45444535421 is a wasteful number, since it uses less digits than its factorization.

45444535421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481730.

The product of its digits is 768000, while the sum is 41.

The spelling of 45444535421 in words is "forty-five billion, four hundred forty-four million, five hundred thirty-five thousand, four hundred twenty-one".