27780027780003 has 4 divisors (see below), whose sum is σ = 37040037040008. Its totient is φ = 18520018520000.

The previous prime is 27780027779951. The next prime is 27780027780007. The reversal of 27780027780003 is 30008772008772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27780027780003 - 2¹⁷ = 27780027648931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27780027780007) 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 3 ways as a sum of consecutive naturals, for example, 4630004629998 + ... + 4630004630003.

It is an arithmetic number, because the mean of its divisors is an integer number (9260009260002).

Almost surely, 2^{27780027780003} is an apocalyptic number.

27780027780003 is a deficient number, since it is larger than the sum of its proper divisors (9260009260005).

27780027780003 is an equidigital number, since it uses as much as digits as its factorization.

27780027780003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9260009260004.

The product of its (nonzero) digits is 1843968, while the sum is 51.

Adding to 27780027780003 its reverse (30008772008772), we get a palindrome (57788799788775).

The spelling of 27780027780003 in words is "twenty-seven trillion, seven hundred eighty billion, twenty-seven million, seven hundred eighty thousand, three".