1283523257871 has 24 divisors (see below), whose sum is σ = 1897397414640. Its totient is φ = 835874134656.

The previous prime is 1283523257857. The next prime is 1283523257873. The reversal of 1283523257871 is 1787523253821.

1283523257871 is a `hidden beast` number, since 1 + 2 + 8 + 35 + 2 + 32 + 578 + 7 + 1 = 666.

It is not a de Polignac number, because 1283523257871 - 2⁷ = 1283523257743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283523257873) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 9586536 + ... + 9719501.

It is an arithmetic number, because the mean of its divisors is an integer number (79058225610).

Almost surely, 2^{1283523257871} is an apocalyptic number.

1283523257871 is a deficient number, since it is larger than the sum of its proper divisors (613874156769).

1283523257871 is a wasteful number, since it uses less digits than its factorization.

1283523257871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19306215 (or 19306212 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 1283523257871 in words is "one trillion, two hundred eighty-three billion, five hundred twenty-three million, two hundred fifty-seven thousand, eight hundred seventy-one".