83687671521511 has 8 divisors (see below), whose sum is σ = 83693457644720. Its totient is φ = 83681885662848.

The previous prime is 83687671521479. The next prime is 83687671521523. The reversal of 83687671521511 is 11512517678638.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 83687671521511 - 2⁵ = 83687671521479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83687671521511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83687671521551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1643196895 + ... + 1643247823.

It is an arithmetic number, because the mean of its divisors is an integer number (10461682205590).

Almost surely, 2^{83687671521511} is an apocalyptic number.

83687671521511 is a deficient number, since it is larger than the sum of its proper divisors (5786123209).

83687671521511 is a wasteful number, since it uses less digits than its factorization.

83687671521511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132273.

The product of its digits is 16934400, while the sum is 61.

The spelling of 83687671521511 in words is "eighty-three trillion, six hundred eighty-seven billion, six hundred seventy-one million, five hundred twenty-one thousand, five hundred eleven".