83687673454511 has 16 divisors (see below), whose sum is σ = 98943861234240. Its totient is φ = 69256825612800.

The previous prime is 83687673454423. The next prime is 83687673454513. The reversal of 83687673454511 is 11545437678638.

It is a de Polignac number, because none of the positive numbers 2^k-83687673454511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83687673454513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1523111 + ... + 13026711.

It is an arithmetic number, because the mean of its divisors is an integer number (6183991327140).

Almost surely, 2^{83687673454511} is an apocalyptic number.

83687673454511 is a deficient number, since it is larger than the sum of its proper divisors (15256187779729).

83687673454511 is a wasteful number, since it uses less digits than its factorization.

83687673454511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11539474.

The product of its digits is 406425600, while the sum is 68.

The spelling of 83687673454511 in words is "eighty-three trillion, six hundred eighty-seven billion, six hundred seventy-three million, four hundred fifty-four thousand, five hundred eleven".