57685337478 has 48 divisors (see below), whose sum is σ = 130571191296. Its totient is φ = 18383963760.

The previous prime is 57685337471. The next prime is 57685337503. The reversal of 57685337478 is 87473358675.

57685337478 is a `hidden beast` number, since 57 + 6 + 8 + 533 + 7 + 47 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57685337471) 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 23 ways as a sum of consecutive naturals, for example, 576450 + ... + 669077.

It is an arithmetic number, because the mean of its divisors is an integer number (2720233152).

Almost surely, 2^57685337478 is an apocalyptic number.

57685337478 is an abundant number, since it is smaller than the sum of its proper divisors (72885853818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57685337478 is a wasteful number, since it uses less digits than its factorization.

57685337478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245649 (or 1245646 counting only the distinct ones).

The product of its digits is 118540800, while the sum is 63.

The spelling of 57685337478 in words is "fifty-seven billion, six hundred eighty-five million, three hundred thirty-seven thousand, four hundred seventy-eight".