21070586071 has 2 divisors, whose sum is σ = 21070586072. Its totient is φ = 21070586070.

The previous prime is 21070586003. The next prime is 21070586077. The reversal of 21070586071 is 17068507012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21070586071 - 2²⁹ = 20533715159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21070586071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21070586077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10535293035 + 10535293036.

It is an arithmetic number, because the mean of its divisors is an integer number (10535293036).

Almost surely, 2^21070586071 is an apocalyptic number.

21070586071 is a deficient number, since it is larger than the sum of its proper divisors (1).

21070586071 is an equidigital number, since it uses as much as digits as its factorization.

21070586071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 21070586071 in words is "twenty-one billion, seventy million, five hundred eighty-six thousand, seventy-one".