71611084769 has 8 divisors (see below), whose sum is σ = 81858605760. Its totient is φ = 61367905296.

The previous prime is 71611084723. The next prime is 71611084777. The reversal of 71611084769 is 96748011617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71611084769 is a prime.

It is a super-2 number, since 2×71611084769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71611084789) 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 7 ways as a sum of consecutive naturals, for example, 1049954 + ... + 1116075.

It is an arithmetic number, because the mean of its divisors is an integer number (10232325720).

Almost surely, 2^71611084769 is an apocalyptic number.

It is an amenable number.

71611084769 is a deficient number, since it is larger than the sum of its proper divisors (10247520991).

71611084769 is a wasteful number, since it uses less digits than its factorization.

71611084769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170759.

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 71611084769 in words is "seventy-one billion, six hundred eleven million, eighty-four thousand, seven hundred sixty-nine".