45554644449 has 36 divisors (see below), whose sum is σ = 67695955236. Its totient is φ = 29519704800.

The previous prime is 45554644427. The next prime is 45554644463. The reversal of 45554644449 is 94444645554.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

45554644449 is a `hidden beast` number, since 4 + 5 + 554 + 6 + 4 + 44 + 49 = 666.

45554644449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8741315025 + 36813329424 = 93495^2 + 191868^2 .

It is not a de Polignac number, because 45554644449 - 2⁵ = 45554644417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45554644395 and 45554644404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45554644409) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 168098184 + ... + 168098454.

It is an arithmetic number, because the mean of its divisors is an integer number (1880443201).

Almost surely, 2^45554644449 is an apocalyptic number.

It is an amenable number.

45554644449 is a deficient number, since it is larger than the sum of its proper divisors (22141310787).

45554644449 is an frugal number, since it uses more digits than its factorization.

45554644449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 315 counting only the distinct ones).

The product of its digits is 27648000, while the sum is 54.

The spelling of 45554644449 in words is "forty-five billion, five hundred fifty-four million, six hundred forty-four thousand, four hundred forty-nine".