71765013911 has 2 divisors, whose sum is σ = 71765013912. Its totient is φ = 71765013910.

The previous prime is 71765013889. The next prime is 71765013949. The reversal of 71765013911 is 11931056717.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71765013911 - 2⁶ = 71765013847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71765013211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35882506955 + 35882506956.

It is an arithmetic number, because the mean of its divisors is an integer number (35882506956).

Almost surely, 2^71765013911 is an apocalyptic number.

71765013911 is a deficient number, since it is larger than the sum of its proper divisors (1).

71765013911 is an equidigital number, since it uses as much as digits as its factorization.

71765013911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 41.

The spelling of 71765013911 in words is "seventy-one billion, seven hundred sixty-five million, thirteen thousand, nine hundred eleven".