27845433776678 has 8 divisors (see below), whose sum is σ = 47735029331472. Its totient is φ = 11933757332856.

The previous prime is 27845433776659. The next prime is 27845433776761. The reversal of 27845433776678 is 87667733454872.

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

It is a super-2 number, since 2×27845433776678² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27845433776599 and 27845433776608.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 994479777725 + ... + 994479777752.

It is an arithmetic number, because the mean of its divisors is an integer number (5966878666434).

Almost surely, 2^{27845433776678} is an apocalyptic number.

27845433776678 is a deficient number, since it is larger than the sum of its proper divisors (19889595554794).

27845433776678 is a wasteful number, since it uses less digits than its factorization.

27845433776678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988959555486.

The product of its digits is 7965941760, while the sum is 77.

The spelling of 27845433776678 in words is "twenty-seven trillion, eight hundred forty-five billion, four hundred thirty-three million, seven hundred seventy-six thousand, six hundred seventy-eight".