71328770113 has 2 divisors, whose sum is σ = 71328770114. Its totient is φ = 71328770112.

The previous prime is 71328770083. The next prime is 71328770167. The reversal of 71328770113 is 31107782317.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62556012544 + 8772757569 = 250112^2 + 93663^2 .

It is a cyclic number.

It is not a de Polignac number, because 71328770113 - 2¹³ = 71328761921 is a prime.

It is not a weakly prime, because it can be changed into another prime (71328774113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35664385056 + 35664385057.

It is an arithmetic number, because the mean of its divisors is an integer number (35664385057).

Almost surely, 2^71328770113 is an apocalyptic number.

It is an amenable number.

71328770113 is a deficient number, since it is larger than the sum of its proper divisors (1).

71328770113 is an equidigital number, since it uses as much as digits as its factorization.

71328770113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 40.

The spelling of 71328770113 in words is "seventy-one billion, three hundred twenty-eight million, seven hundred seventy thousand, one hundred thirteen".