57149041385 has 4 divisors (see below), whose sum is σ = 68578849668. Its totient is φ = 45719233104.

The previous prime is 57149041357. The next prime is 57149041403. The reversal of 57149041385 is 58314094175.

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 15171587929 + 41977453456 = 123173^2 + 204884^2 .

It is a cyclic number.

It is not a de Polignac number, because 57149041385 - 2¹² = 57149037289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5714904134 + ... + 5714904143.

It is an arithmetic number, because the mean of its divisors is an integer number (17144712417).

Almost surely, 2^57149041385 is an apocalyptic number.

It is an amenable number.

57149041385 is a deficient number, since it is larger than the sum of its proper divisors (11429808283).

57149041385 is a wasteful number, since it uses less digits than its factorization.

57149041385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11429808282.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 57149041385 in words is "fifty-seven billion, one hundred forty-nine million, forty-one thousand, three hundred eighty-five".