71407338033671 has 2 divisors, whose sum is σ = 71407338033672. Its totient is φ = 71407338033670.

The previous prime is 71407338033659. The next prime is 71407338033673. The reversal of 71407338033671 is 17633083370417.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71407338033671 - 2⁴² = 67009291522567 is a prime.

Together with 71407338033673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71407338033673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35703669016835 + 35703669016836.

It is an arithmetic number, because the mean of its divisors is an integer number (35703669016836).

Almost surely, 2^{71407338033671} is an apocalyptic number.

71407338033671 is a deficient number, since it is larger than the sum of its proper divisors (1).

71407338033671 is an equidigital number, since it uses as much as digits as its factorization.

71407338033671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5334336, while the sum is 53.

The spelling of 71407338033671 in words is "seventy-one trillion, four hundred seven billion, three hundred thirty-eight million, thirty-three thousand, six hundred seventy-one".