1778085112 has 8 divisors (see below), whose sum is σ = 3333909600. Its totient is φ = 889042552.

The previous prime is 1778085107. The next prime is 1778085121. The reversal of 1778085112 is 2115808771.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111130312 + ... + 111130327.

It is an arithmetic number, because the mean of its divisors is an integer number (416738700).

Almost surely, 2^1778085112 is an apocalyptic number.

It is an amenable number.

1778085112 is a deficient number, since it is larger than the sum of its proper divisors (1555824488).

1778085112 is a wasteful number, since it uses less digits than its factorization.

1778085112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222260645 (or 222260641 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 40.

The square root of 1778085112 is about 42167.3465136235. The cubic root of 1778085112 is about 1211.4835324505.

The spelling of 1778085112 in words is "one billion, seven hundred seventy-eight million, eighty-five thousand, one hundred twelve".