80711347469 has 4 divisors (see below), whose sum is σ = 80733542844. Its totient is φ = 80689152096.

The previous prime is 80711347441. The next prime is 80711347487. The reversal of 80711347469 is 96474311708.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3535729444 + 77175618025 = 59462^2 + 277805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80711347469 is a prime.

It is a super-2 number, since 2×80711347469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80711347169) 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, 11092232 + ... + 11099505.

It is an arithmetic number, because the mean of its divisors is an integer number (20183385711).

Almost surely, 2^80711347469 is an apocalyptic number.

It is an amenable number.

80711347469 is a deficient number, since it is larger than the sum of its proper divisors (22195375).

80711347469 is a wasteful number, since it uses less digits than its factorization.

80711347469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22195374.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 80711347469 in words is "eighty billion, seven hundred eleven million, three hundred forty-seven thousand, four hundred sixty-nine".