2686280521 has 2 divisors, whose sum is σ = 2686280522. Its totient is φ = 2686280520.

The previous prime is 2686280497. The next prime is 2686280557. The reversal of 2686280521 is 1250826862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2681168400 + 5112121 = 51780^2 + 2261^2 .

It is a cyclic number.

It is not a de Polignac number, because 2686280521 - 2⁵ = 2686280489 is a prime.

It is a super-2 number, since 2×2686280521² = 14432206075008062882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2686280581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343140260 + 1343140261.

It is an arithmetic number, because the mean of its divisors is an integer number (1343140261).

Almost surely, 2^2686280521 is an apocalyptic number.

It is an amenable number.

2686280521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2686280521 is an equidigital number, since it uses as much as digits as its factorization.

2686280521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 2686280521 is about 51829.3403488796. The cubic root of 2686280521 is about 1390.1141187813.

The spelling of 2686280521 in words is "two billion, six hundred eighty-six million, two hundred eighty thousand, five hundred twenty-one".