86434881361 has 4 divisors (see below), whose sum is σ = 86912422324. Its totient is φ = 85957340400.

The previous prime is 86434881353. The next prime is 86434881373. The reversal of 86434881361 is 16318843468.

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 2714931025 + 83719950336 = 52105^2 + 289344^2 .

It is a cyclic number.

It is not a de Polignac number, because 86434881361 - 2³ = 86434881353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86434881299 and 86434881308.

It is not an unprimeable number, because it can be changed into a prime (86434881161) 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, 238770210 + ... + 238770571.

It is an arithmetic number, because the mean of its divisors is an integer number (21728105581).

Almost surely, 2^86434881361 is an apocalyptic number.

It is an amenable number.

86434881361 is a deficient number, since it is larger than the sum of its proper divisors (477540963).

86434881361 is a wasteful number, since it uses less digits than its factorization.

86434881361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477540962.

The product of its digits is 2654208, while the sum is 52.

The spelling of 86434881361 in words is "eighty-six billion, four hundred thirty-four million, eight hundred eighty-one thousand, three hundred sixty-one".