71706671061 has 32 divisors (see below), whose sum is σ = 100972809600. Its totient is φ = 45139368960.

The previous prime is 71706671033. The next prime is 71706671089. The reversal of 71706671061 is 16017660717.

It is an interprime number because it is at equal distance from previous prime (71706671033) and next prime (71706671089).

It is not a de Polignac number, because 71706671061 - 2¹⁹ = 71706146773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71706671161) 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 31 ways as a sum of consecutive naturals, for example, 28442481 + ... + 28445001.

It is an arithmetic number, because the mean of its divisors is an integer number (3155400300).

Almost surely, 2^71706671061 is an apocalyptic number.

It is an amenable number.

71706671061 is a deficient number, since it is larger than the sum of its proper divisors (29266138539).

71706671061 is a wasteful number, since it uses less digits than its factorization.

71706671061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989.

The product of its (nonzero) digits is 74088, while the sum is 42.

The spelling of 71706671061 in words is "seventy-one billion, seven hundred six million, six hundred seventy-one thousand, sixty-one".