71584280382 has 16 divisors (see below), whose sum is σ = 144116698752. Its totient is φ = 23703403800.

The previous prime is 71584280381. The next prime is 71584280389. The reversal of 71584280382 is 28308248517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71584280381) 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, 39504768 + ... + 39506579.

It is an arithmetic number, because the mean of its divisors is an integer number (9007293672).

Almost surely, 2^71584280382 is an apocalyptic number.

71584280382 is an abundant number, since it is smaller than the sum of its proper divisors (72532418370).

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

71584280382 is a wasteful number, since it uses less digits than its factorization.

71584280382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79011503.

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 71584280382 in words is "seventy-one billion, five hundred eighty-four million, two hundred eighty thousand, three hundred eighty-two".