1085439053778 has 16 divisors (see below), whose sum is σ = 2174264820576. Its totient is φ = 361248565760.

The previous prime is 1085439053729. The next prime is 1085439053821. The reversal of 1085439053778 is 8773509345801.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141108876 + ... + 141116567.

It is an arithmetic number, because the mean of its divisors is an integer number (135891551286).

Almost surely, 2^{1085439053778} is an apocalyptic number.

1085439053778 is an abundant number, since it is smaller than the sum of its proper divisors (1088825766798).

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

1085439053778 is a wasteful number, since it uses less digits than its factorization.

1085439053778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282226089.

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 1085439053778 in words is "one trillion, eighty-five billion, four hundred thirty-nine million, fifty-three thousand, seven hundred seventy-eight".