57638705441 has 4 divisors (see below), whose sum is σ = 57639637572. Its totient is φ = 57637773312.

The previous prime is 57638705429. The next prime is 57638705459. The reversal of 57638705441 is 14450783675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7337635600 + 50301069841 = 85660^2 + 224279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57638705441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57638705441.

It is not an unprimeable number, because it can be changed into a prime (57638705741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366176 + ... + 499361.

It is an arithmetic number, because the mean of its divisors is an integer number (14409909393).

Almost surely, 2^57638705441 is an apocalyptic number.

It is an amenable number.

57638705441 is a deficient number, since it is larger than the sum of its proper divisors (932131).

57638705441 is an equidigital number, since it uses as much as digits as its factorization.

57638705441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932130.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 57638705441 in words is "fifty-seven billion, six hundred thirty-eight million, seven hundred five thousand, four hundred forty-one".