71080892137 has 2 divisors, whose sum is σ = 71080892138. Its totient is φ = 71080892136.

The previous prime is 71080892119. The next prime is 71080892171. The reversal of 71080892137 is 73129808017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59974050816 + 11106841321 = 244896^2 + 105389^2 .

It is a cyclic number.

It is not a de Polignac number, because 71080892137 - 2¹⁹ = 71080367849 is a prime.

It is not a weakly prime, because it can be changed into another prime (71080892537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35540446068 + 35540446069.

It is an arithmetic number, because the mean of its divisors is an integer number (35540446069).

Almost surely, 2^71080892137 is an apocalyptic number.

It is an amenable number.

71080892137 is a deficient number, since it is larger than the sum of its proper divisors (1).

71080892137 is an equidigital number, since it uses as much as digits as its factorization.

71080892137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 46.

The spelling of 71080892137 in words is "seventy-one billion, eighty million, eight hundred ninety-two thousand, one hundred thirty-seven".