1085890878768 has 20 divisors (see below), whose sum is σ = 2805218103608. Its totient is φ = 361963626240.

The previous prime is 1085890878763. The next prime is 1085890878811. The reversal of 1085890878768 is 8678780985801.

It is a self number, because there is not a number n which added to its sum of digits gives 1085890878768.

It is not an unprimeable number, because it can be changed into a prime (1085890878763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11311363273 + ... + 11311363368.

Almost surely, 2^{1085890878768} is an apocalyptic number.

It is an amenable number.

1085890878768 is an abundant number, since it is smaller than the sum of its proper divisors (1719327224840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1085890878768 is a wasteful number, since it uses less digits than its factorization.

1085890878768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22622726652 (or 22622726646 counting only the distinct ones).

The product of its (nonzero) digits is 433520640, while the sum is 75.

The spelling of 1085890878768 in words is "one trillion, eighty-five billion, eight hundred ninety million, eight hundred seventy-eight thousand, seven hundred sixty-eight".