11716778858 has 8 divisors (see below), whose sum is σ = 17579845152. Its totient is φ = 5856830476.

The previous prime is 11716778839. The next prime is 11716778861. The reversal of 11716778858 is 85887761711.

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

It is a junction number, because it is equal to n+sod(n) for n = 11716778797 and 11716778806.

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, 770060 + ... + 785127.

It is an arithmetic number, because the mean of its divisors is an integer number (2197480644).

Almost surely, 2^11716778858 is an apocalyptic number.

11716778858 is a deficient number, since it is larger than the sum of its proper divisors (5863066294).

11716778858 is a wasteful number, since it uses less digits than its factorization.

11716778858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558956.

The product of its digits is 5268480, while the sum is 59.

The spelling of 11716778858 in words is "eleven billion, seven hundred sixteen million, seven hundred seventy-eight thousand, eight hundred fifty-eight".