10855179785394 has 24 divisors (see below), whose sum is σ = 26879492802240. Its totient is φ = 3101479938648.

The previous prime is 10855179785393. The next prime is 10855179785399. The reversal of 10855179785394 is 49358797155801.

It is a happy number.

10855179785394 is a `hidden beast` number, since 1 + 0 + 8 + 5 + 5 + 17 + 9 + 78 + 539 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (10855179785393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43076110134 + ... + 43076110385.

It is an arithmetic number, because the mean of its divisors is an integer number (1119978866760).

Almost surely, 2^{10855179785394} is an apocalyptic number.

10855179785394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10855179785394 is an abundant number, since it is smaller than the sum of its proper divisors (16024313016846).

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

10855179785394 is a wasteful number, since it uses less digits than its factorization.

10855179785394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86152220534 (or 86152220531 counting only the distinct ones).

The product of its (nonzero) digits is 381024000, while the sum is 72.

The spelling of 10855179785394 in words is "ten trillion, eight hundred fifty-five billion, one hundred seventy-nine million, seven hundred eighty-five thousand, three hundred ninety-four".