71905203712 has 40 divisors (see below), whose sum is σ = 144988153200. Its totient is φ = 35622733824.

The previous prime is 71905203703. The next prime is 71905203757. The reversal of 71905203712 is 21730250917.

It is a congruent number.

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, 588412 + ... + 700027.

It is an arithmetic number, because the mean of its divisors is an integer number (3624703830).

Almost surely, 2^71905203712 is an apocalyptic number.

It is an amenable number.

71905203712 is an abundant number, since it is smaller than the sum of its proper divisors (73082949488).

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

71905203712 is a wasteful number, since it uses less digits than its factorization.

71905203712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288566 (or 1288550 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 71905203712 in words is "seventy-one billion, nine hundred five million, two hundred three thousand, seven hundred twelve".