11678280850845 has 48 divisors (see below), whose sum is σ = 23759364720000. Its totient is φ = 5194355029632.

The previous prime is 11678280850727. The next prime is 11678280850891. The reversal of 11678280850845 is 54805808287611.

11678280850845 is a `hidden beast` number, since 1 + 1 + 6 + 7 + 8 + 2 + 80 + 8 + 508 + 45 = 666.

It is not a de Polignac number, because 11678280850845 - 2⁹ = 11678280850333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 500987095 + ... + 501010404.

It is an arithmetic number, because the mean of its divisors is an integer number (494986765000).

Almost surely, 2^{11678280850845} is an apocalyptic number.

11678280850845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11678280850845 is an abundant number, since it is smaller than the sum of its proper divisors (12081083869155).

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

11678280850845 is a wasteful number, since it uses less digits than its factorization.

11678280850845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001997554 (or 1001997551 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 63.

The spelling of 11678280850845 in words is "eleven trillion, six hundred seventy-eight billion, two hundred eighty million, eight hundred fifty thousand, eight hundred forty-five".