71682777473 has 8 divisors (see below), whose sum is σ = 75912640128. Its totient is φ = 67454384704.

The previous prime is 71682777469. The next prime is 71682777479. The reversal of 71682777473 is 37477728617.

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

It is a cyclic number.

It is not a de Polignac number, because 71682777473 - 2² = 71682777469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71682777479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266261 + ... + 462882.

It is an arithmetic number, because the mean of its divisors is an integer number (9489080016).

Almost surely, 2^71682777473 is an apocalyptic number.

It is an amenable number.

71682777473 is a deficient number, since it is larger than the sum of its proper divisors (4229862655).

71682777473 is a wasteful number, since it uses less digits than its factorization.

71682777473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734943.

The product of its digits is 19361664, while the sum is 59.

The spelling of 71682777473 in words is "seventy-one billion, six hundred eighty-two million, seven hundred seventy-seven thousand, four hundred seventy-three".