1283005866068 has 12 divisors (see below), whose sum is σ = 2253996688692. Its totient is φ = 639006812160.

The previous prime is 1283005866061. The next prime is 1283005866073. The reversal of 1283005866068 is 8606685003821.

It can be written as a sum of positive squares in 2 ways, for example, as 660923472784 + 622082393284 = 812972^2 + 788722^2 .

It is a super-2 number, since 2×1283005866068² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283005866061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624029063 + ... + 624031118.

It is an arithmetic number, because the mean of its divisors is an integer number (187833057391).

Almost surely, 2^{1283005866068} is an apocalyptic number.

It is an amenable number.

1283005866068 is a deficient number, since it is larger than the sum of its proper divisors (970990822624).

1283005866068 is a wasteful number, since it uses less digits than its factorization.

1283005866068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248060442 (or 1248060440 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 1283005866068 in words is "one trillion, two hundred eighty-three billion, five million, eight hundred sixty-six thousand, sixty-eight".