1000889893569 has 32 divisors (see below), whose sum is σ = 1433881543680. Its totient is φ = 619078928832.

The previous prime is 1000889893561. The next prime is 1000889893583. The reversal of 1000889893569 is 9653989880001.

It is not a de Polignac number, because 1000889893569 - 2³ = 1000889893561 is a prime.

It is a super-2 number, since 2×1000889893569² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1000889893561) 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 31 ways as a sum of consecutive naturals, for example, 1349644 + ... + 1955330.

It is an arithmetic number, because the mean of its divisors is an integer number (44808798240).

Almost surely, 2^{1000889893569} is an apocalyptic number.

1000889893569 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1000889893569 is a deficient number, since it is larger than the sum of its proper divisors (432991650111).

1000889893569 is a wasteful number, since it uses less digits than its factorization.

1000889893569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606309.

The product of its (nonzero) digits is 33592320, while the sum is 66.

The spelling of 1000889893569 in words is "one trillion, eight hundred eighty-nine million, eight hundred ninety-three thousand, five hundred sixty-nine".