27778114445 has 8 divisors (see below), whose sum is σ = 33376864536. Its totient is φ = 22193740096.

The previous prime is 27778114433. The next prime is 27778114453. The reversal of 27778114445 is 54441187772.

It can be written as a sum of positive squares in 4 ways, for example, as 2097090436 + 25681024009 = 45794^2 + 160253^2 .

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 27778114445 - 2¹⁸ = 27777852301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27778114393 and 27778114402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3589682 + ... + 3597411.

It is an arithmetic number, because the mean of its divisors is an integer number (4172108067).

Almost surely, 2^27778114445 is an apocalyptic number.

It is an amenable number.

27778114445 is a deficient number, since it is larger than the sum of its proper divisors (5598750091).

27778114445 is an equidigital number, since it uses as much as digits as its factorization.

27778114445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7187871.

The product of its digits is 1756160, while the sum is 50.

The spelling of 27778114445 in words is "twenty-seven billion, seven hundred seventy-eight million, one hundred fourteen thousand, four hundred forty-five".