71729347346 has 8 divisors (see below), whose sum is σ = 107595225804. Its totient is φ = 35864272080.

The previous prime is 71729347337. The next prime is 71729347457. The reversal of 71729347346 is 64374392717.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65007151225 + 6722196121 = 254965^2 + 81989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×71729347346³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 134336 + ... + 401876.

Almost surely, 2^71729347346 is an apocalyptic number.

71729347346 is a deficient number, since it is larger than the sum of its proper divisors (35865878458).

71729347346 is a wasteful number, since it uses less digits than its factorization.

71729347346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401596.

The product of its digits is 5334336, while the sum is 53.

The spelling of 71729347346 in words is "seventy-one billion, seven hundred twenty-nine million, three hundred forty-seven thousand, three hundred forty-six".