71054211071 has 16 divisors (see below), whose sum is σ = 74212314624. Its totient is φ = 67965394464.

The previous prime is 71054211043. The next prime is 71054211091. The reversal of 71054211071 is 17011245017.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71054211071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71054211001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1218446 + ... + 1275428.

It is an arithmetic number, because the mean of its divisors is an integer number (4638269664).

Almost surely, 2^71054211071 is an apocalyptic number.

71054211071 is a deficient number, since it is larger than the sum of its proper divisors (3158103553).

71054211071 is a wasteful number, since it uses less digits than its factorization.

71054211071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57590.

The product of its (nonzero) digits is 1960, while the sum is 29.

Adding to 71054211071 its reverse (17011245017), we get a palindrome (88065456088).

The spelling of 71054211071 in words is "seventy-one billion, fifty-four million, two hundred eleven thousand, seventy-one".