71443036205851 has 2 divisors, whose sum is σ = 71443036205852. Its totient is φ = 71443036205850.

The previous prime is 71443036205767. The next prime is 71443036205899. The reversal of 71443036205851 is 15850263034417.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71443036205851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71443036205795 and 71443036205804.

It is not a weakly prime, because it can be changed into another prime (71443036209851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35721518102925 + 35721518102926.

It is an arithmetic number, because the mean of its divisors is an integer number (35721518102926).

Almost surely, 2^{71443036205851} is an apocalyptic number.

71443036205851 is a deficient number, since it is larger than the sum of its proper divisors (1).

71443036205851 is an equidigital number, since it uses as much as digits as its factorization.

71443036205851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 71443036205851 in words is "seventy-one trillion, four hundred forty-three billion, thirty-six million, two hundred five thousand, eight hundred fifty-one".