86225173381 has 2 divisors, whose sum is σ = 86225173382. Its totient is φ = 86225173380.

The previous prime is 86225173319. The next prime is 86225173387. The reversal of 86225173381 is 18337152268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86162209156 + 62964225 = 293534^2 + 7935^2 .

It is a cyclic number.

It is not a de Polignac number, because 86225173381 - 2²¹ = 86223076229 is a prime.

It is a super-2 number, since 2×86225173381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86225173387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43112586690 + 43112586691.

It is an arithmetic number, because the mean of its divisors is an integer number (43112586691).

Almost surely, 2^86225173381 is an apocalyptic number.

It is an amenable number.

86225173381 is a deficient number, since it is larger than the sum of its proper divisors (1).

86225173381 is an equidigital number, since it uses as much as digits as its factorization.

86225173381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The spelling of 86225173381 in words is "eighty-six billion, two hundred twenty-five million, one hundred seventy-three thousand, three hundred eighty-one".