11681780627 has 8 divisors (see below), whose sum is σ = 12744791040. Its totient is φ = 10618941960.

The previous prime is 11681780611. The next prime is 11681780633. The reversal of 11681780627 is 72608718611.

11681780627 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11681780627 - 2⁴ = 11681780611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11681780687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129374 + ... + 200252.

It is an arithmetic number, because the mean of its divisors is an integer number (1593098880).

Almost surely, 2^11681780627 is an apocalyptic number.

11681780627 is a deficient number, since it is larger than the sum of its proper divisors (1063010413).

11681780627 is a wasteful number, since it uses less digits than its factorization.

11681780627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85873.

The product of its (nonzero) digits is 225792, while the sum is 47.

The spelling of 11681780627 in words is "eleven billion, six hundred eighty-one million, seven hundred eighty thousand, six hundred twenty-seven".