1089445627785 has 16 divisors (see below), whose sum is σ = 1743194900160. Its totient is φ = 581010369600.

The previous prime is 1089445627741. The next prime is 1089445627813. The reversal of 1089445627785 is 5877265449801.

It is not a de Polignac number, because 1089445627785 - 2¹⁰ = 1089445626761 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1374166 + ... + 2016735.

It is an arithmetic number, because the mean of its divisors is an integer number (108949681260).

Almost surely, 2^{1089445627785} is an apocalyptic number.

1089445627785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1089445627785 is a deficient number, since it is larger than the sum of its proper divisors (653749272375).

1089445627785 is a wasteful number, since it uses less digits than its factorization.

1089445627785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412328.

The product of its (nonzero) digits is 135475200, while the sum is 66.

The spelling of 1089445627785 in words is "one trillion, eighty-nine billion, four hundred forty-five million, six hundred twenty-seven thousand, seven hundred eighty-five".