2686225481 has 2 divisors, whose sum is σ = 2686225482. Its totient is φ = 2686225480.

The previous prime is 2686225433. The next prime is 2686225483. The reversal of 2686225481 is 1845226862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2080819456 + 605406025 = 45616^2 + 24605^2 .

It is a cyclic number.

It is not a de Polignac number, because 2686225481 - 2¹⁸ = 2685963337 is a prime.

It is a super-2 number, since 2×2686225481² = 14431614669547362722, which contains 22 as substring.

Together with 2686225483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2686225483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343112740 + 1343112741.

It is an arithmetic number, because the mean of its divisors is an integer number (1343112741).

Almost surely, 2^2686225481 is an apocalyptic number.

It is an amenable number.

2686225481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2686225481 is an equidigital number, since it uses as much as digits as its factorization.

2686225481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 44.

The square root of 2686225481 is about 51828.8093727803. The cubic root of 2686225481 is about 1390.1046245627.

The spelling of 2686225481 in words is "two billion, six hundred eighty-six million, two hundred twenty-five thousand, four hundred eighty-one".