71043555904 has 14 divisors (see below), whose sum is σ = 140977056374. Its totient is φ = 35521777920.

The previous prime is 71043555859. The next prime is 71043555929. The reversal of 71043555904 is 40955534017.

It can be written as a sum of positive squares in only one way, i.e., 70624125504 + 419430400 = 265752^2 + 20480^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555027717 + ... + 555027844.

It is an arithmetic number, because the mean of its divisors is an integer number (10069789741).

Almost surely, 2^71043555904 is an apocalyptic number.

It is an amenable number.

71043555904 is a deficient number, since it is larger than the sum of its proper divisors (69933500470).

71043555904 is a wasteful number, since it uses less digits than its factorization.

71043555904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110055573 (or 1110055563 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 71043555904 in words is "seventy-one billion, forty-three million, five hundred fifty-five thousand, nine hundred four".