27783807967 has 8 divisors (see below), whose sum is σ = 28854273536. Its totient is φ = 26732630232.

The previous prime is 27783807959. The next prime is 27783807979. The reversal of 27783807967 is 76970838772.

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

It is a cyclic number.

It is not a de Polignac number, because 27783807967 - 2³ = 27783807959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27783807899 and 27783807908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27783807917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4819023 + ... + 4824784.

It is an arithmetic number, because the mean of its divisors is an integer number (3606784192).

Almost surely, 2^27783807967 is an apocalyptic number.

27783807967 is a deficient number, since it is larger than the sum of its proper divisors (1070465569).

27783807967 is an equidigital number, since it uses as much as digits as its factorization.

27783807967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9643917.

The product of its (nonzero) digits is 49787136, while the sum is 64.

The spelling of 27783807967 in words is "twenty-seven billion, seven hundred eighty-three million, eight hundred seven thousand, nine hundred sixty-seven".