987155227427 has 2 divisors, whose sum is σ = 987155227428. Its totient is φ = 987155227426.

The previous prime is 987155227411. The next prime is 987155227507. The reversal of 987155227427 is 724722551789.

987155227427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 987155227427 - 2⁴ = 987155227411 is a prime.

It is not a weakly prime, because it can be changed into another prime (987155227627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493577613713 + 493577613714.

It is an arithmetic number, because the mean of its divisors is an integer number (493577613714).

Almost surely, 2^987155227427 is an apocalyptic number.

987155227427 is a deficient number, since it is larger than the sum of its proper divisors (1).

987155227427 is an equidigital number, since it uses as much as digits as its factorization.

987155227427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 59.

The spelling of 987155227427 in words is "nine hundred eighty-seven billion, one hundred fifty-five million, two hundred twenty-seven thousand, four hundred twenty-seven".