71428572866 has 32 divisors (see below), whose sum is σ = 124794380160. Its totient is φ = 30026221056.

The previous prime is 71428572851. The next prime is 71428572883. The reversal of 71428572866 is 66827582417.

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, 3119090 + ... + 3141906.

It is an arithmetic number, because the mean of its divisors is an integer number (3899824380).

Almost surely, 2^71428572866 is an apocalyptic number.

71428572866 is a deficient number, since it is larger than the sum of its proper divisors (53365807294).

71428572866 is a wasteful number, since it uses less digits than its factorization.

71428572866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27098.

The product of its digits is 9031680, while the sum is 56.

The spelling of 71428572866 in words is "seventy-one billion, four hundred twenty-eight million, five hundred seventy-two thousand, eight hundred sixty-six".