71000026213 has 4 divisors (see below), whose sum is σ = 71161757920. Its totient is φ = 70838294508.

The previous prime is 71000026187. The next prime is 71000026231. The reversal of 71000026213 is 31262000017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71000026213 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 (71000006213) 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 3 ways as a sum of consecutive naturals, for example, 80865195 + ... + 80866072.

It is an arithmetic number, because the mean of its divisors is an integer number (17790439480).

Almost surely, 2^71000026213 is an apocalyptic number.

It is an amenable number.

71000026213 is a deficient number, since it is larger than the sum of its proper divisors (161731707).

71000026213 is a wasteful number, since it uses less digits than its factorization.

71000026213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161731706.

The product of its (nonzero) digits is 504, while the sum is 22.

The spelling of 71000026213 in words is "seventy-one billion, twenty-six thousand, two hundred thirteen".