71965019053 has 2 divisors, whose sum is σ = 71965019054. Its totient is φ = 71965019052.

The previous prime is 71965018927. The next prime is 71965019059. The reversal of 71965019053 is 35091056917.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69813265284 + 2151753769 = 264222^2 + 46387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71965019053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71965018994 and 71965019012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71965019059) 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, 35982509526 + 35982509527.

It is an arithmetic number, because the mean of its divisors is an integer number (35982509527).

Almost surely, 2^71965019053 is an apocalyptic number.

It is an amenable number.

71965019053 is a deficient number, since it is larger than the sum of its proper divisors (1).

71965019053 is an equidigital number, since it uses as much as digits as its factorization.

71965019053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 255150, while the sum is 46.

The spelling of 71965019053 in words is "seventy-one billion, nine hundred sixty-five million, nineteen thousand, fifty-three".