57069870637 has 18 divisors (see below), whose sum is σ = 62574930222. Its totient is φ = 51740886384.

The previous prime is 57069870607. The next prime is 57069870643. The reversal of 57069870637 is 73607896075.

It can be written as a sum of positive squares in only one way, i.e., 39509910441 + 17559960196 = 198771^2 + 132514^2 .

It is a de Polignac number, because none of the positive numbers 2^k-57069870637 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 (57069870607) 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 17 ways as a sum of consecutive naturals, for example, 50818558 + ... + 50819680.

Almost surely, 2^57069870637 is an apocalyptic number.

It is an amenable number.

57069870637 is a deficient number, since it is larger than the sum of its proper divisors (5505059585).

57069870637 is an frugal number, since it uses more digits than its factorization.

57069870637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377 (or 1195 counting only the distinct ones).

The product of its (nonzero) digits is 13335840, while the sum is 58.

The spelling of 57069870637 in words is "fifty-seven billion, sixty-nine million, eight hundred seventy thousand, six hundred thirty-seven".