71301206573 has 2 divisors, whose sum is σ = 71301206574. Its totient is φ = 71301206572.

The previous prime is 71301206563. The next prime is 71301206629. The reversal of 71301206573 is 37560210317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71217995689 + 83210884 = 266867^2 + 9122^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71301206573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71301206503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35650603286 + 35650603287.

It is an arithmetic number, because the mean of its divisors is an integer number (35650603287).

Almost surely, 2^71301206573 is an apocalyptic number.

It is an amenable number.

71301206573 is a deficient number, since it is larger than the sum of its proper divisors (1).

71301206573 is an equidigital number, since it uses as much as digits as its factorization.

71301206573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 35.

The spelling of 71301206573 in words is "seventy-one billion, three hundred one million, two hundred six thousand, five hundred seventy-three".