11678893305778 has 8 divisors (see below), whose sum is σ = 17530599123180. Its totient is φ = 5835360264720.

The previous prime is 11678893305763. The next prime is 11678893305787. The reversal of 11678893305778 is 87750339887611.

It can be written as a sum of positive squares in 2 ways, for example, as 11617306445889 + 61586859889 = 3408417^2 + 248167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11678893305778.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2043190513 + ... + 2043196228.

Almost surely, 2^{11678893305778} is an apocalyptic number.

11678893305778 is a deficient number, since it is larger than the sum of its proper divisors (5851705817402).

11678893305778 is a wasteful number, since it uses less digits than its factorization.

11678893305778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086388172.

The product of its (nonzero) digits is 426746880, while the sum is 73.

The spelling of 11678893305778 in words is "eleven trillion, six hundred seventy-eight billion, eight hundred ninety-three million, three hundred five thousand, seven hundred seventy-eight".