86058851721 has 16 divisors (see below), whose sum is σ = 118513102848. Its totient is φ = 55490662800.

The previous prime is 86058851717. The next prime is 86058851743. The reversal of 86058851721 is 12715885068.

It is not a de Polignac number, because 86058851721 - 2² = 86058851717 is a prime.

It is a super-2 number, since 2×86058851721² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86058851771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92725 + ... + 425106.

It is an arithmetic number, because the mean of its divisors is an integer number (7407068928).

Almost surely, 2^86058851721 is an apocalyptic number.

It is an amenable number.

86058851721 is a deficient number, since it is larger than the sum of its proper divisors (32454251127).

86058851721 is a wasteful number, since it uses less digits than its factorization.

86058851721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519652.

The product of its (nonzero) digits is 1075200, while the sum is 51.

The spelling of 86058851721 in words is "eighty-six billion, fifty-eight million, eight hundred fifty-one thousand, seven hundred twenty-one".