71865544804 has 12 divisors (see below), whose sum is σ = 125767119744. Its totient is φ = 35932082024.

The previous prime is 71865544783. The next prime is 71865544823. The reversal of 71865544804 is 40844556817.

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, 114789 + ... + 396115.

It is an arithmetic number, because the mean of its divisors is an integer number (10480593312).

Almost surely, 2^71865544804 is an apocalyptic number.

It is an amenable number.

71865544804 is a deficient number, since it is larger than the sum of its proper divisors (53901574940).

71865544804 is a wasteful number, since it uses less digits than its factorization.

71865544804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345194 (or 345192 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 52.

The spelling of 71865544804 in words is "seventy-one billion, eight hundred sixty-five million, five hundred forty-four thousand, eight hundred four".