71342998273 has 2 divisors, whose sum is σ = 71342998274. Its totient is φ = 71342998272.

The previous prime is 71342998267. The next prime is 71342998343. The reversal of 71342998273 is 37289924317.

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., 58277822464 + 13065175809 = 241408^2 + 114303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71342998273 is a prime.

It is not a weakly prime, because it can be changed into another prime (71342993273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35671499136 + 35671499137.

It is an arithmetic number, because the mean of its divisors is an integer number (35671499137).

Almost surely, 2^71342998273 is an apocalyptic number.

It is an amenable number.

71342998273 is a deficient number, since it is larger than the sum of its proper divisors (1).

71342998273 is an equidigital number, since it uses as much as digits as its factorization.

71342998273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 55.

The spelling of 71342998273 in words is "seventy-one billion, three hundred forty-two million, nine hundred ninety-eight thousand, two hundred seventy-three".