71706382135 has 12 divisors (see below), whose sum is σ = 87917426568. Its totient is φ = 56144562896.

The previous prime is 71706382133. The next prime is 71706382151. The reversal of 71706382135 is 53128360717.

It is not a de Polignac number, because 71706382135 - 2¹ = 71706382133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71706382091 and 71706382100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71706382133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3235057 + ... + 3257146.

It is an arithmetic number, because the mean of its divisors is an integer number (7326452214).

Almost surely, 2^71706382135 is an apocalyptic number.

71706382135 is a deficient number, since it is larger than the sum of its proper divisors (16211044433).

71706382135 is an equidigital number, since it uses as much as digits as its factorization.

71706382135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6492302 (or 6492255 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 71706382135 in words is "seventy-one billion, seven hundred six million, three hundred eighty-two thousand, one hundred thirty-five".