1111335778890 has 96 divisors (see below), whose sum is σ = 3004284563280. Its totient is φ = 284684424192.

The previous prime is 1111335778831. The next prime is 1111335778897. The reversal of 1111335778890 is 988775331111.

1111335778890 is a `hidden beast` number, since 11 + 113 + 357 + 7 + 88 + 90 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1047591143361 + 63744635529 = 1023519^2 + 252477^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1111335778897) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 566539 + ... + 1594878.

Almost surely, 2^{1111335778890} is an apocalyptic number.

1111335778890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111335778890 is an abundant number, since it is smaller than the sum of its proper divisors (1892948784390).

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

1111335778890 is a wasteful number, since it uses less digits than its factorization.

1111335778890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161656 (or 2161653 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 54.

The spelling of 1111335778890 in words is "one trillion, one hundred eleven billion, three hundred thirty-five million, seven hundred seventy-eight thousand, eight hundred ninety".