11681784806 has 8 divisors (see below), whose sum is σ = 17530325904. Its totient is φ = 5838342840.

The previous prime is 11681784791. The next prime is 11681784817. The reversal of 11681784806 is 60848718611.

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

It is a congruent number.

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, 1269050 + ... + 1278221.

It is an arithmetic number, because the mean of its divisors is an integer number (2191290738).

Almost surely, 2^11681784806 is an apocalyptic number.

11681784806 is a deficient number, since it is larger than the sum of its proper divisors (5848541098).

11681784806 is a wasteful number, since it uses less digits than its factorization.

11681784806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549566.

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 11681784806 in words is "eleven billion, six hundred eighty-one million, seven hundred eighty-four thousand, eight hundred six".