71404895019745 has 12 divisors (see below), whose sum is σ = 99675404476884. Its totient is φ = 48963356584800.

The previous prime is 71404895019701. The next prime is 71404895019779. The reversal of 71404895019745 is 54791059840417.

It can be written as a sum of positive squares in 2 ways, for example, as 29095581217024 + 42309313802721 = 5394032^2 + 6504561^2 .

It is not a de Polignac number, because 71404895019745 - 2¹⁹ = 71404894495457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145724275306 + ... + 145724275795.

It is an arithmetic number, because the mean of its divisors is an integer number (8306283706407).

Almost surely, 2^{71404895019745} is an apocalyptic number.

It is an amenable number.

71404895019745 is a deficient number, since it is larger than the sum of its proper divisors (28270509457139).

71404895019745 is a wasteful number, since it uses less digits than its factorization.

71404895019745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291448551120 (or 291448551113 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 64.

The spelling of 71404895019745 in words is "seventy-one trillion, four hundred four billion, eight hundred ninety-five million, nineteen thousand, seven hundred forty-five".