27712238987 has 2 divisors, whose sum is σ = 27712238988. Its totient is φ = 27712238986.

The previous prime is 27712238977. The next prime is 27712238993. The reversal of 27712238987 is 78983221772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27712238987 - 2⁴ = 27712238971 is a prime.

It is not a weakly prime, because it can be changed into another prime (27712238977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13856119493 + 13856119494.

It is an arithmetic number, because the mean of its divisors is an integer number (13856119494).

Almost surely, 2^27712238987 is an apocalyptic number.

27712238987 is a deficient number, since it is larger than the sum of its proper divisors (1).

27712238987 is an equidigital number, since it uses as much as digits as its factorization.

27712238987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4741632, while the sum is 56.

The spelling of 27712238987 in words is "twenty-seven billion, seven hundred twelve million, two hundred thirty-eight thousand, nine hundred eighty-seven".