281377630871 has 2 divisors, whose sum is σ = 281377630872. Its totient is φ = 281377630870.

The previous prime is 281377630847. The next prime is 281377630873. The reversal of 281377630871 is 178036773182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 281377630871 - 2²² = 281373436567 is a prime.

Together with 281377630873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281377630873) 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, 140688815435 + 140688815436.

It is an arithmetic number, because the mean of its divisors is an integer number (140688815436).

Almost surely, 2^281377630871 is an apocalyptic number.

281377630871 is a deficient number, since it is larger than the sum of its proper divisors (1).

281377630871 is an equidigital number, since it uses as much as digits as its factorization.

281377630871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The spelling of 281377630871 in words is "two hundred eighty-one billion, three hundred seventy-seven million, six hundred thirty thousand, eight hundred seventy-one".