71950505239 has 2 divisors, whose sum is σ = 71950505240. Its totient is φ = 71950505238.

The previous prime is 71950505177. The next prime is 71950505299. The reversal of 71950505239 is 93250505917.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71950505239 - 2¹⁵ = 71950472471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71950505299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35975252619 + 35975252620.

It is an arithmetic number, because the mean of its divisors is an integer number (35975252620).

Almost surely, 2^71950505239 is an apocalyptic number.

71950505239 is a deficient number, since it is larger than the sum of its proper divisors (1).

71950505239 is an equidigital number, since it uses as much as digits as its factorization.

71950505239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 425250, while the sum is 46.

The spelling of 71950505239 in words is "seventy-one billion, nine hundred fifty million, five hundred five thousand, two hundred thirty-nine".