80817227711 has 4 divisors (see below), whose sum is σ = 88164248424. Its totient is φ = 73470207000.

The previous prime is 80817227683. The next prime is 80817227731. The reversal of 80817227711 is 11772271808.

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 80817227711 - 2²² = 80813033407 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 (80817227731) 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 3 ways as a sum of consecutive naturals, for example, 3673510340 + ... + 3673510361.

It is an arithmetic number, because the mean of its divisors is an integer number (22041062106).

Almost surely, 2^80817227711 is an apocalyptic number.

80817227711 is a deficient number, since it is larger than the sum of its proper divisors (7347020713).

80817227711 is a wasteful number, since it uses less digits than its factorization.

80817227711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7347020712.

The product of its (nonzero) digits is 87808, while the sum is 44.

The spelling of 80817227711 in words is "eighty billion, eight hundred seventeen million, two hundred twenty-seven thousand, seven hundred eleven".