86302161359681 has 4 divisors (see below), whose sum is σ = 86302352536452. Its totient is φ = 86301970182912.

The previous prime is 86302161359593. The next prime is 86302161359699. The reversal of 86302161359681 is 18695316120368.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59314396109056 + 26987765250625 = 7701584^2 + 5194975^2 .

It is a cyclic number.

It is not a de Polignac number, because 86302161359681 - 2¹⁴ = 86302161343297 is a prime.

It is a super-2 number, since 2×86302161359681² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86302161359681.

It is not an unprimeable number, because it can be changed into a prime (86302161359581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94909640 + ... + 95814633.

It is an arithmetic number, because the mean of its divisors is an integer number (21575588134113).

Almost surely, 2^{86302161359681} is an apocalyptic number.

It is an amenable number.

86302161359681 is a deficient number, since it is larger than the sum of its proper divisors (191176771).

86302161359681 is a wasteful number, since it uses less digits than its factorization.

86302161359681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191176770.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 86302161359681 in words is "eighty-six trillion, three hundred two billion, one hundred sixty-one million, three hundred fifty-nine thousand, six hundred eighty-one".