27758900419 has 2 divisors, whose sum is σ = 27758900420. Its totient is φ = 27758900418.

The previous prime is 27758900363. The next prime is 27758900447. The reversal of 27758900419 is 91400985772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27758900419 is a prime.

It is a super-2 number, since 2×27758900419² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27758900219) by changing a digit.

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 as a sum of consecutive naturals, namely, 13879450209 + 13879450210.

It is an arithmetic number, because the mean of its divisors is an integer number (13879450210).

Almost surely, 2^27758900419 is an apocalyptic number.

27758900419 is a deficient number, since it is larger than the sum of its proper divisors (1).

27758900419 is an equidigital number, since it uses as much as digits as its factorization.

27758900419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 27758900419 in words is "twenty-seven billion, seven hundred fifty-eight million, nine hundred thousand, four hundred nineteen".