8111079789785 has 32 divisors (see below), whose sum is σ = 11458737964800. Its totient is φ = 5395913303040.

The previous prime is 8111079789781. The next prime is 8111079789887. The reversal of 8111079789785 is 5879879701118.

It is not a de Polignac number, because 8111079789785 - 2² = 8111079789781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8111079789781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15531740 + ... + 16045469.

It is an arithmetic number, because the mean of its divisors is an integer number (358085561400).

Almost surely, 2^{8111079789785} is an apocalyptic number.

It is an amenable number.

8111079789785 is a deficient number, since it is larger than the sum of its proper divisors (3347658175015).

8111079789785 is a wasteful number, since it uses less digits than its factorization.

8111079789785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31577441.

The product of its (nonzero) digits is 71124480, while the sum is 71.

The spelling of 8111079789785 in words is "eight trillion, one hundred eleven billion, seventy-nine million, seven hundred eighty-nine thousand, seven hundred eighty-five".