71605385234 has 32 divisors (see below), whose sum is σ = 116350680000. Its totient is φ = 32935170240.

The previous prime is 71605385233. The next prime is 71605385249. The reversal of 71605385234 is 43258350617.

It is not an unprimeable number, because it can be changed into a prime (71605385233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650564 + ... + 752624.

It is an arithmetic number, because the mean of its divisors is an integer number (3635958750).

Almost surely, 2^71605385234 is an apocalyptic number.

71605385234 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

71605385234 is a deficient number, since it is larger than the sum of its proper divisors (44745294766).

71605385234 is a wasteful number, since it uses less digits than its factorization.

71605385234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102618.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 71605385234 in words is "seventy-one billion, six hundred five million, three hundred eighty-five thousand, two hundred thirty-four".