71000681713 has 12 divisors (see below), whose sum is σ = 81404892108. Its totient is φ = 61683847680.

The previous prime is 71000681641. The next prime is 71000681729. The reversal of 71000681713 is 31718600017.

It can be written as a sum of positive squares in 6 ways, for example, as 23689211569 + 47311470144 = 153913^2 + 217512^2 .

It is not a de Polignac number, because 71000681713 - 2¹³ = 71000673521 is a prime.

It is a super-2 number, since 2×71000681713² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71000681743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12353668 + ... + 12359413.

It is an arithmetic number, because the mean of its divisors is an integer number (6783741009).

Almost surely, 2^71000681713 is an apocalyptic number.

It is an amenable number.

71000681713 is a deficient number, since it is larger than the sum of its proper divisors (10404210395).

71000681713 is a wasteful number, since it uses less digits than its factorization.

71000681713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24713124 (or 24713111 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 71000681713 in words is "seventy-one billion, six hundred eighty-one thousand, seven hundred thirteen".