71397589412 has 48 divisors (see below), whose sum is σ = 126767773440. Its totient is φ = 35183271552.

The previous prime is 71397589381. The next prime is 71397589427. The reversal of 71397589412 is 21498579317.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44428313 + ... + 44429919.

It is an arithmetic number, because the mean of its divisors is an integer number (2640995280).

Almost surely, 2^71397589412 is an apocalyptic number.

It is an amenable number.

71397589412 is a deficient number, since it is larger than the sum of its proper divisors (55370184028).

71397589412 is a wasteful number, since it uses less digits than its factorization.

71397589412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300 (or 2298 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 56.

The spelling of 71397589412 in words is "seventy-one billion, three hundred ninety-seven million, five hundred eighty-nine thousand, four hundred twelve".