71227910812 has 12 divisors (see below), whose sum is σ = 125395245360. Its totient is φ = 35400697856.

The previous prime is 71227910791. The next prime is 71227910821. The reversal of 71227910812 is 21801972217.

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, 53313637 + ... + 53314972.

It is an arithmetic number, because the mean of its divisors is an integer number (10449603780).

Almost surely, 2^71227910812 is an apocalyptic number.

It is an amenable number.

71227910812 is a deficient number, since it is larger than the sum of its proper divisors (54167334548).

71227910812 is a wasteful number, since it uses less digits than its factorization.

71227910812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106628780 (or 106628778 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 40.

The spelling of 71227910812 in words is "seventy-one billion, two hundred twenty-seven million, nine hundred ten thousand, eight hundred twelve".