27980214553 has 2 divisors, whose sum is σ = 27980214554. Its totient is φ = 27980214552.

The previous prime is 27980214503. The next prime is 27980214569. The reversal of 27980214553 is 35541208972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27978583824 + 1630729 = 167268^2 + 1277^2 .

It is a cyclic number.

It is not a de Polignac number, because 27980214553 - 2¹³ = 27980206361 is a prime.

It is not a weakly prime, because it can be changed into another prime (27980214503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13990107276 + 13990107277.

It is an arithmetic number, because the mean of its divisors is an integer number (13990107277).

Almost surely, 2^27980214553 is an apocalyptic number.

It is an amenable number.

27980214553 is a deficient number, since it is larger than the sum of its proper divisors (1).

27980214553 is an equidigital number, since it uses as much as digits as its factorization.

27980214553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 27980214553 in words is "twenty-seven billion, nine hundred eighty million, two hundred fourteen thousand, five hundred fifty-three".