5447774777445 has 144 divisors (see below), whose sum is σ = 12774507747456. Its totient is φ = 2089855468800.

The previous prime is 5447774777441. The next prime is 5447774777477.

5447774777445 is a `hidden beast` number, since 5 + 4 + 4 + 7 + 77 + 47 + 77 + 445 = 666.

5447774777445 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5447774777445 - 2² = 5447774777441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5447774777441) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5001811 + ... + 5992800.

Almost surely, 2^{5447774777445} is an apocalyptic number.

5447774777445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5447774777445 is an abundant number, since it is smaller than the sum of its proper divisors (7326732970011).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5447774777445 is a wasteful number, since it uses less digits than its factorization.

5447774777445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10994664 (or 10994650 counting only the distinct ones).

The product of its digits is 3011814400, while the sum is 72.

The spelling of 5447774777445 in words is "five trillion, four hundred forty-seven billion, seven hundred seventy-four million, seven hundred seventy-seven thousand, four hundred forty-five".