1005747385869 has 12 divisors (see below), whose sum is σ = 1473207439392. Its totient is φ = 661054619400.

The previous prime is 1005747385859. The next prime is 1005747385873. The reversal of 1005747385869 is 9685837475001.

1005747385869 is a `hidden beast` number, since 1 + 0 + 0 + 5 + 7 + 47 + 3 + 8 + 586 + 9 = 666.

It is not a de Polignac number, because 1005747385869 - 2¹⁷ = 1005747254797 is a prime.

It is a super-2 number, since 2×1005747385869² (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 (1005747385859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 786969147 + ... + 786970424.

It is an arithmetic number, because the mean of its divisors is an integer number (122767286616).

Almost surely, 2^{1005747385869} is an apocalyptic number.

It is an amenable number.

1005747385869 is a deficient number, since it is larger than the sum of its proper divisors (467460053523).

1005747385869 is a wasteful number, since it uses less digits than its factorization.

1005747385869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573939648 (or 1573939645 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 63.

The spelling of 1005747385869 in words is "one trillion, five billion, seven hundred forty-seven million, three hundred eighty-five thousand, eight hundred sixty-nine".