5447781072 has 60 divisors (see below), whose sum is σ = 15334419204. Its totient is φ = 1805422080.

The previous prime is 5447781037. The next prime is 5447781077. The reversal of 5447781072 is 2701877445.

It can be written as a sum of positive squares in 2 ways, for example, as 2071706256 + 3376074816 = 45516^2 + 58104^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5447781077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84429 + ... + 134252.

Almost surely, 2^5447781072 is an apocalyptic number.

It is an amenable number.

5447781072 is an abundant number, since it is smaller than the sum of its proper divisors (9886638132).

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

5447781072 is a wasteful number, since it uses less digits than its factorization.

5447781072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218868 (or 218859 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The square root of 5447781072 is about 73809.0852944270. The cubic root of 5447781072 is about 1759.5699999793.

The spelling of 5447781072 in words is "five billion, four hundred forty-seven million, seven hundred eighty-one thousand, seventy-two".