61282608281 has 12 divisors (see below), whose sum is σ = 63627803820. Its totient is φ = 58953666240.

The previous prime is 61282608269. The next prime is 61282608319. The reversal of 61282608281 is 18280628216.

It can be written as a sum of positive squares in 6 ways, for example, as 9051619600 + 52230988681 = 95140^2 + 228541^2 .

It is not a de Polignac number, because 61282608281 - 2¹⁴ = 61282591897 is a prime.

It is a super-2 number, since 2×61282608281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61282608251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2211371 + ... + 2238911.

It is an arithmetic number, because the mean of its divisors is an integer number (5302316985).

Almost surely, 2^61282608281 is an apocalyptic number.

It is an amenable number.

61282608281 is a deficient number, since it is larger than the sum of its proper divisors (2345195539).

61282608281 is an equidigital number, since it uses as much as digits as its factorization.

61282608281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28124 (or 27847 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 44.

The spelling of 61282608281 in words is "sixty-one billion, two hundred eighty-two million, six hundred eight thousand, two hundred eighty-one".