83718927618911 has 4 divisors (see below), whose sum is σ = 90158845128072. Its totient is φ = 77279010109752.

The previous prime is 83718927618901. The next prime is 83718927618917. The reversal of 83718927618911 is 11981672981738.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83718927618911 - 2¹⁰ = 83718927617887 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 (83718927618917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3219958754561 + ... + 3219958754586.

It is an arithmetic number, because the mean of its divisors is an integer number (22539711282018).

Almost surely, 2^{83718927618911} is an apocalyptic number.

83718927618911 is a deficient number, since it is larger than the sum of its proper divisors (6439917509161).

83718927618911 is a wasteful number, since it uses less digits than its factorization.

83718927618911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6439917509160.

The product of its digits is 73156608, while the sum is 71.

The spelling of 83718927618911 in words is "eighty-three trillion, seven hundred eighteen billion, nine hundred twenty-seven million, six hundred eighteen thousand, nine hundred eleven".