1005838389268 has 12 divisors (see below), whose sum is σ = 1760290143892. Its totient is φ = 502898348160.

The previous prime is 1005838389209. The next prime is 1005838389299. The reversal of 1005838389268 is 8629838385001.

It can be written as a sum of positive squares in 2 ways, for example, as 487536304644 + 518302084624 = 698238^2 + 719932^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5102805 + ... + 5296252.

Almost surely, 2^{1005838389268} is an apocalyptic number.

It is an amenable number.

1005838389268 is a deficient number, since it is larger than the sum of its proper divisors (754451754624).

1005838389268 is a wasteful number, since it uses less digits than its factorization.

1005838389268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10423242 (or 10423240 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 61.

The spelling of 1005838389268 in words is "one trillion, five billion, eight hundred thirty-eight million, three hundred eighty-nine thousand, two hundred sixty-eight".