71285000788 has 24 divisors (see below), whose sum is σ = 127738306080. Its totient is φ = 34789490400.

The previous prime is 71285000779. The next prime is 71285000881. The reversal of 71285000788 is 88700058217.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106758 + ... + 392386.

It is an arithmetic number, because the mean of its divisors is an integer number (5322429420).

Almost surely, 2^71285000788 is an apocalyptic number.

71285000788 is the 142714-th centered heptagonal number.

It is an amenable number.

71285000788 is a deficient number, since it is larger than the sum of its proper divisors (56453305292).

71285000788 is a wasteful number, since it uses less digits than its factorization.

71285000788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287127 (or 287125 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 46.

The spelling of 71285000788 in words is "seventy-one billion, two hundred eighty-five million, seven hundred eighty-eight", and thus it is an aban number.