57432779361 has 6 divisors (see below), whose sum is σ = 82958459090. Its totient is φ = 38288519568.

The previous prime is 57432779309. The next prime is 57432779387. The reversal of 57432779361 is 16397723475.

57432779361 is a `hidden beast` number, since 5 + 7 + 4 + 3 + 277 + 9 + 361 = 666.

57432779361 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., 40443221025 + 16989558336 = 201105^2 + 130344^2 .

It is not a de Polignac number, because 57432779361 - 2⁷ = 57432779233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57432779298 and 57432779307.

It is not an unprimeable number, because it can be changed into a prime (57432779461) 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, 3190709956 + ... + 3190709973.

Almost surely, 2^57432779361 is an apocalyptic number.

It is an amenable number.

57432779361 is a deficient number, since it is larger than the sum of its proper divisors (25525679729).

57432779361 is a wasteful number, since it uses less digits than its factorization.

57432779361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6381419935 (or 6381419932 counting only the distinct ones).

The product of its digits is 6667920, while the sum is 54.

The spelling of 57432779361 in words is "fifty-seven billion, four hundred thirty-two million, seven hundred seventy-nine thousand, three hundred sixty-one".