71057047592 has 8 divisors (see below), whose sum is σ = 133231964250. Its totient is φ = 35528523792.

The previous prime is 71057047591. The next prime is 71057047631. The reversal of 71057047592 is 29574075017.

It can be written as a sum of positive squares in only one way, i.e., 56875572196 + 14181475396 = 238486^2 + 119086^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (71057047591) by changing a digit.

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, 4441065467 + ... + 4441065482.

Almost surely, 2^71057047592 is an apocalyptic number.

It is an amenable number.

71057047592 is a deficient number, since it is larger than the sum of its proper divisors (62174916658).

71057047592 is a wasteful number, since it uses less digits than its factorization.

71057047592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8882130955 (or 8882130951 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 71057047592 in words is "seventy-one billion, fifty-seven million, forty-seven thousand, five hundred ninety-two".