71682777480 has 128 divisors (see below), whose sum is σ = 216050901120. Its totient is φ = 19026524160.

The previous prime is 71682777479. The next prime is 71682777487. The reversal of 71682777480 is 8477728617.

It is a self number, because there is not a number n which added to its sum of digits gives 71682777480.

It is not an unprimeable number, because it can be changed into a prime (71682777487) 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 31 ways as a sum of consecutive naturals, for example, 26420604 + ... + 26423316.

It is an arithmetic number, because the mean of its divisors is an integer number (1687897665).

Almost surely, 2^71682777480 is an apocalyptic number.

It is an amenable number.

71682777480 is an abundant number, since it is smaller than the sum of its proper divisors (144368123640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71682777480 is a wasteful number, since it uses less digits than its factorization.

71682777480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671 (or 3667 counting only the distinct ones).

The product of its (nonzero) digits is 7375872, while the sum is 57.

The spelling of 71682777480 in words is "seventy-one billion, six hundred eighty-two million, seven hundred seventy-seven thousand, four hundred eighty".