257115437060212 has 12 divisors (see below), whose sum is σ = 449952237611716. Its totient is φ = 128557654885440.

The previous prime is 257115437060147. The next prime is 257115437060243. The reversal of 257115437060212 is 212060734511752.

It can be written as a sum of positive squares in 2 ways, for example, as 113520415923216 + 143595021136996 = 10654596^2 + 11983114^2 .

It is a super-2 number, since 2×257115437060212² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6157089 + ... + 23497672.

Almost surely, 2^{257115437060212} is an apocalyptic number.

It is an amenable number.

257115437060212 is a deficient number, since it is larger than the sum of its proper divisors (192836800551504).

257115437060212 is a wasteful number, since it uses less digits than its factorization.

257115437060212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31822338 (or 31822336 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 257115437060212 in words is "two hundred fifty-seven trillion, one hundred fifteen billion, four hundred thirty-seven million, sixty thousand, two hundred twelve".