71044400044 has 6 divisors (see below), whose sum is σ = 124327700084. Its totient is φ = 35522200020.

The previous prime is 71044399999. The next prime is 71044400051. The reversal of 71044400044 is 44000444017.

It is a happy number.

It is a super-2 number, since 2×71044400044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71044399985 and 71044400021.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8880550002 + ... + 8880550009.

Almost surely, 2^71044400044 is an apocalyptic number.

It is an amenable number.

71044400044 is a deficient number, since it is larger than the sum of its proper divisors (53283300040).

71044400044 is a wasteful number, since it uses less digits than its factorization.

71044400044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17761100015 (or 17761100013 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 28.

The spelling of 71044400044 in words is "seventy-one billion, forty-four million, four hundred thousand, forty-four".