71305200671 has 8 divisors (see below), whose sum is σ = 72878874624. Its totient is φ = 69747342840.

The previous prime is 71305200661. The next prime is 71305200689. The reversal of 71305200671 is 17600250317.

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 71305200671 - 2⁶ = 71305200607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71305200661) 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, 3944915 + ... + 3962948.

It is an arithmetic number, because the mean of its divisors is an integer number (9109859328).

Almost surely, 2^71305200671 is an apocalyptic number.

71305200671 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

71305200671 is a deficient number, since it is larger than the sum of its proper divisors (1573673953).

71305200671 is a wasteful number, since it uses less digits than its factorization.

71305200671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7908061.

The product of its (nonzero) digits is 8820, while the sum is 32.

Adding to 71305200671 its reverse (17600250317), we get a palindrome (88905450988).

The spelling of 71305200671 in words is "seventy-one billion, three hundred five million, two hundred thousand, six hundred seventy-one".