86039371099081 has 9 divisors (see below), whose sum is σ = 86541197349621. Its totient is φ = 85540438266432.

The previous prime is 86039371098973. The next prime is 86039371099093. The reversal of 86039371099081 is 18099017393068.

The square root of 86039371099081 is 9275741.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 70189895399481 + 15849475699600 = 8377941^2 + 3981140^2 .

It is not a de Polignac number, because 86039371099081 - 2²⁵ = 86039337544649 is a prime.

It is a super-2 number, since 2×86039371099081² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86039371094081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1604676385 + ... + 1604730001.

Almost surely, 2^{86039371099081} is an apocalyptic number.

86039371099081 is the 9275741-st square number.

86039371099081 is the 4637871-st centered octagonal number.

It is an amenable number.

86039371099081 is a deficient number, since it is larger than the sum of its proper divisors (501826250540).

86039371099081 is an frugal number, since it uses more digits than its factorization.

86039371099081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107580 (or 53790 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 64.

The spelling of 86039371099081 in words is "eighty-six trillion, thirty-nine billion, three hundred seventy-one million, ninety-nine thousand, eighty-one".