27800374219 has 2 divisors, whose sum is σ = 27800374220. Its totient is φ = 27800374218.

The previous prime is 27800374171. The next prime is 27800374271. The reversal of 27800374219 is 91247300872.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27800374219 is a prime.

It is a super-2 number, since 2×27800374219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27800374519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13900187109 + 13900187110.

It is an arithmetic number, because the mean of its divisors is an integer number (13900187110).

Almost surely, 2^27800374219 is an apocalyptic number.

27800374219 is a deficient number, since it is larger than the sum of its proper divisors (1).

27800374219 is an equidigital number, since it uses as much as digits as its factorization.

27800374219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 27800374219 in words is "twenty-seven billion, eight hundred million, three hundred seventy-four thousand, two hundred nineteen".