27930244403 has 2 divisors, whose sum is σ = 27930244404. Its totient is φ = 27930244402.

The previous prime is 27930244387. The next prime is 27930244417. The reversal of 27930244403 is 30444203972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27930244403 - 2⁴ = 27930244387 is a prime.

It is a super-2 number, since 2×27930244403² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27930244423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13965122201 + 13965122202.

It is an arithmetic number, because the mean of its divisors is an integer number (13965122202).

Almost surely, 2^27930244403 is an apocalyptic number.

27930244403 is a deficient number, since it is larger than the sum of its proper divisors (1).

27930244403 is an equidigital number, since it uses as much as digits as its factorization.

27930244403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 27930244403 in words is "twenty-seven billion, nine hundred thirty million, two hundred forty-four thousand, four hundred three".