71832870321 has 8 divisors (see below), whose sum is σ = 97814972544. Its totient is φ = 46869674160.

The previous prime is 71832870293. The next prime is 71832870419. The reversal of 71832870321 is 12307823817.

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

It is not a de Polignac number, because 71832870321 - 2⁵ = 71832870289 is a prime.

It is a super-2 number, since 2×71832870321² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71832800321) 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, 254726350 + ... + 254726631.

It is an arithmetic number, because the mean of its divisors is an integer number (12226871568).

Almost surely, 2^71832870321 is an apocalyptic number.

It is an amenable number.

71832870321 is a deficient number, since it is larger than the sum of its proper divisors (25982102223).

71832870321 is a wasteful number, since it uses less digits than its factorization.

71832870321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509453031.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 71832870321 in words is "seventy-one billion, eight hundred thirty-two million, eight hundred seventy thousand, three hundred twenty-one".