1083285778061 has 2 divisors, whose sum is σ = 1083285778062. Its totient is φ = 1083285778060.

The previous prime is 1083285778039. The next prime is 1083285778109. The reversal of 1083285778061 is 1608775823801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1076800536100 + 6485241961 = 1037690^2 + 80531^2 .

It is a cyclic number.

It is not a de Polignac number, because 1083285778061 - 2³⁴ = 1066105908877 is a prime.

It is a super-2 number, since 2×1083285778061² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1083285777988 and 1083285778006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1083285778021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541642889030 + 541642889031.

It is an arithmetic number, because the mean of its divisors is an integer number (541642889031).

Almost surely, 2^{1083285778061} is an apocalyptic number.

It is an amenable number.

1083285778061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1083285778061 is an equidigital number, since it uses as much as digits as its factorization.

1083285778061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4515840, while the sum is 56.

The spelling of 1083285778061 in words is "one trillion, eighty-three billion, two hundred eighty-five million, seven hundred seventy-eight thousand, sixty-one".