71220840304 has 20 divisors (see below), whose sum is σ = 137998259064. Its totient is φ = 35608386368.

The previous prime is 71220840289. The next prime is 71220840337. The reversal of 71220840304 is 40304802217.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185019 + ... + 420325.

Almost surely, 2^71220840304 is an apocalyptic number.

It is an amenable number.

71220840304 is a deficient number, since it is larger than the sum of its proper divisors (66777418760).

71220840304 is a wasteful number, since it uses less digits than its factorization.

71220840304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254232 (or 254226 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The spelling of 71220840304 in words is "seventy-one billion, two hundred twenty million, eight hundred forty thousand, three hundred four".