71584048516 has 12 divisors (see below), whose sum is σ = 125389940032. Its totient is φ = 35758351368.

The previous prime is 71584048507. The next prime is 71584048531. The reversal of 71584048516 is 61584048517.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 71584048516.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8413440 + ... + 8421943.

Almost surely, 2^71584048516 is an apocalyptic number.

It is an amenable number.

71584048516 is a deficient number, since it is larger than the sum of its proper divisors (53805891516).

71584048516 is a wasteful number, since it uses less digits than its factorization.

71584048516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16836450 (or 16836448 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 49.

Subtracting from 71584048516 its reverse (61584048517), we obtain a palindrome (9999999999).

The spelling of 71584048516 in words is "seventy-one billion, five hundred eighty-four million, forty-eight thousand, five hundred sixteen".