71306504261 has 8 divisors (see below), whose sum is σ = 72775098720. Its totient is φ = 69849801648.

The previous prime is 71306504197. The next prime is 71306504263. The reversal of 71306504261 is 16240560317.

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

It is a cyclic number.

It is not a de Polignac number, because 71306504261 - 2⁶ = 71306504197 is a prime.

It is a super-2 number, since 2×71306504261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71306504263) 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, 2960846 + ... + 2984831.

It is an arithmetic number, because the mean of its divisors is an integer number (9096887340).

Almost surely, 2^71306504261 is an apocalyptic number.

It is an amenable number.

71306504261 is a deficient number, since it is larger than the sum of its proper divisors (1468594459).

71306504261 is a wasteful number, since it uses less digits than its factorization.

71306504261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5945923.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 71306504261 in words is "seventy-one billion, three hundred six million, five hundred four thousand, two hundred sixty-one".