5647478761 has 16 divisors (see below), whose sum is σ = 6102388800. Its totient is φ = 5224916544.

The previous prime is 5647478743. The next prime is 5647478797. The reversal of 5647478761 is 1678747465.

It is not a de Polignac number, because 5647478761 - 2¹⁷ = 5647347689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5647278761) 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 15 ways as a sum of consecutive naturals, for example, 280126 + ... + 299608.

It is an arithmetic number, because the mean of its divisors is an integer number (381399300).

Almost surely, 2^5647478761 is an apocalyptic number.

It is an amenable number.

5647478761 is a deficient number, since it is larger than the sum of its proper divisors (454910039).

5647478761 is an equidigital number, since it uses as much as digits as its factorization.

5647478761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19593 (or 19559 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 55.

The square root of 5647478761 is about 75149.7089881258. The cubic root of 5647478761 is about 1780.8125273526.

The spelling of 5647478761 in words is "five billion, six hundred forty-seven million, four hundred seventy-eight thousand, seven hundred sixty-one".