27633749987 has 2 divisors, whose sum is σ = 27633749988. Its totient is φ = 27633749986.

The previous prime is 27633749971. The next prime is 27633750013. The reversal of 27633749987 is 78994733672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27633749987 - 2⁴ = 27633749971 is a prime.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13816874993 + 13816874994.

It is an arithmetic number, because the mean of its divisors is an integer number (13816874994).

Almost surely, 2^27633749987 is an apocalyptic number.

27633749987 is a deficient number, since it is larger than the sum of its proper divisors (1).

27633749987 is an equidigital number, since it uses as much as digits as its factorization.

27633749987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96018048, while the sum is 65.

The spelling of 27633749987 in words is "twenty-seven billion, six hundred thirty-three million, seven hundred forty-nine thousand, nine hundred eighty-seven".