71738835305 has 8 divisors (see below), whose sum is σ = 86397385992. Its totient is φ = 57183879168.

The previous prime is 71738835293. The next prime is 71738835373. The reversal of 71738835305 is 50353883717.

It can be written as a sum of positive squares in 4 ways, for example, as 4174710544 + 67564124761 = 64612^2 + 259931^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71738835305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25897112 + ... + 25899881.

It is an arithmetic number, because the mean of its divisors is an integer number (10799673249).

Almost surely, 2^71738835305 is an apocalyptic number.

It is an amenable number.

71738835305 is a deficient number, since it is larger than the sum of its proper divisors (14658550687).

71738835305 is a wasteful number, since it uses less digits than its factorization.

71738835305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51797275.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 71738835305 in words is "seventy-one billion, seven hundred thirty-eight million, eight hundred thirty-five thousand, three hundred five".