80688538811 has 16 divisors (see below), whose sum is σ = 82185062400. Its totient is φ = 79205013888.

The previous prime is 80688538789. The next prime is 80688538813. The reversal of 80688538811 is 11883588608.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80688538811 - 2⁶ = 80688538747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80688538813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12892595 + ... + 12898851.

It is an arithmetic number, because the mean of its divisors is an integer number (5136566400).

Almost surely, 2^80688538811 is an apocalyptic number.

80688538811 is a deficient number, since it is larger than the sum of its proper divisors (1496523589).

80688538811 is a wasteful number, since it uses less digits than its factorization.

80688538811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7258.

The product of its (nonzero) digits is 2949120, while the sum is 56.

The spelling of 80688538811 in words is "eighty billion, six hundred eighty-eight million, five hundred thirty-eight thousand, eight hundred eleven".