56071767789 has 6 divisors (see below), whose sum is σ = 80992553486. Its totient is φ = 37381178520.

The previous prime is 56071767769. The next prime is 56071767797. The reversal of 56071767789 is 98776717065.

56071767789 is a `hidden beast` number, since 5 + 607 + 17 + 6 + 7 + 7 + 8 + 9 = 666.

56071767789 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 only one way, i.e., 55656830889 + 414936900 = 235917^2 + 20370^2 .

It is not a de Polignac number, because 56071767789 - 2⁹ = 56071767277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56071767769) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3115098202 + ... + 3115098219.

Almost surely, 2^56071767789 is an apocalyptic number.

It is an amenable number.

56071767789 is a deficient number, since it is larger than the sum of its proper divisors (24920785697).

56071767789 is a wasteful number, since it uses less digits than its factorization.

56071767789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6230196427 (or 6230196424 counting only the distinct ones).

The product of its (nonzero) digits is 31116960, while the sum is 63.

The spelling of 56071767789 in words is "fifty-six billion, seventy-one million, seven hundred sixty-seven thousand, seven hundred eighty-nine".