83687671521512 has 32 divisors (see below), whose sum is σ = 157014060930120. Its totient is φ = 41817256888320.

The previous prime is 83687671521479. The next prime is 83687671521523. The reversal of 83687671521512 is 21512517678638.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62920018941796 + 20767652579716 = 7932214^2 + 4557154^2 .

It is a super-2 number, since 2×83687671521512² (a number of 29 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 519780062 + ... + 519941042.

Almost surely, 2^{83687671521512} is an apocalyptic number.

It is an amenable number.

83687671521512 is a deficient number, since it is larger than the sum of its proper divisors (73326389408608).

83687671521512 is a wasteful number, since it uses less digits than its factorization.

83687671521512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201861 (or 201857 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 62.

The spelling of 83687671521512 in words is "eighty-three trillion, six hundred eighty-seven billion, six hundred seventy-one million, five hundred twenty-one thousand, five hundred twelve".