2057531811682 has 8 divisors (see below), whose sum is σ = 3089060744796. Its totient is φ = 1027844896752.

The previous prime is 2057531811667. The next prime is 2057531811689. The reversal of 2057531811682 is 2861181357502.

It can be written as a sum of positive squares in 2 ways, for example, as 1348178754321 + 709353057361 = 1161111^2 + 842231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2057531811682² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2057531811689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460501753 + ... + 460506220.

Almost surely, 2^{2057531811682} is an apocalyptic number.

2057531811682 is a deficient number, since it is larger than the sum of its proper divisors (1031528933114).

2057531811682 is a wasteful number, since it uses less digits than its factorization.

2057531811682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921009092.

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 2057531811682 in words is "two trillion, fifty-seven billion, five hundred thirty-one million, eight hundred eleven thousand, six hundred eighty-two".