6278881061 has 4 divisors (see below), whose sum is σ = 6318874092. Its totient is φ = 6238888032.

The previous prime is 6278881051. The next prime is 6278881069. The reversal of 6278881061 is 1601888726.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1601888726 = 2 ⋅800944363.

It can be written as a sum of positive squares in 2 ways, for example, as 4744592161 + 1534288900 = 68881^2 + 39170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6278881061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6278880997 and 6278881015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6278881069) 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, 19996280 + ... + 19996593.

It is an arithmetic number, because the mean of its divisors is an integer number (1579718523).

Almost surely, 2^6278881061 is an apocalyptic number.

It is an amenable number.

6278881061 is a deficient number, since it is larger than the sum of its proper divisors (39993031).

6278881061 is a wasteful number, since it uses less digits than its factorization.

6278881061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39993030.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 6278881061 is about 79239.3908419291. The cubic root of 6278881061 is about 1844.8486898383.

The spelling of 6278881061 in words is "six billion, two hundred seventy-eight million, eight hundred eighty-one thousand, sixty-one".