71212673353 has 2 divisors, whose sum is σ = 71212673354. Its totient is φ = 71212673352.

The previous prime is 71212673309. The next prime is 71212673381. The reversal of 71212673353 is 35337621217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70600209849 + 612463504 = 265707^2 + 24748^2 .

It is a cyclic number.

It is not a de Polignac number, because 71212673353 - 2¹⁷ = 71212542281 is a prime.

It is not a weakly prime, because it can be changed into another prime (71212673153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35606336676 + 35606336677.

It is an arithmetic number, because the mean of its divisors is an integer number (35606336677).

Almost surely, 2^71212673353 is an apocalyptic number.

It is an amenable number.

71212673353 is a deficient number, since it is larger than the sum of its proper divisors (1).

71212673353 is an equidigital number, since it uses as much as digits as its factorization.

71212673353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 40.

The spelling of 71212673353 in words is "seventy-one billion, two hundred twelve million, six hundred seventy-three thousand, three hundred fifty-three".