71256965061494 has 16 divisors (see below), whose sum is σ = 107219404188000. Its totient is φ = 35517305746944.

The previous prime is 71256965061493. The next prime is 71256965061577. The reversal of 71256965061494 is 49416056965217.

It is a self number, because there is not a number n which added to its sum of digits gives 71256965061494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71256965061493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34516514 + ... + 36522645.

It is an arithmetic number, because the mean of its divisors is an integer number (6701212761750).

Almost surely, 2^{71256965061494} is an apocalyptic number.

71256965061494 is a deficient number, since it is larger than the sum of its proper divisors (35962439126506).

71256965061494 is a wasteful number, since it uses less digits than its factorization.

71256965061494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71040727.

The product of its (nonzero) digits is 97977600, while the sum is 65.

The spelling of 71256965061494 in words is "seventy-one trillion, two hundred fifty-six billion, nine hundred sixty-five million, sixty-one thousand, four hundred ninety-four".