281481663259 has 2 divisors, whose sum is σ = 281481663260. Its totient is φ = 281481663258.

The previous prime is 281481663193. The next prime is 281481663269. The reversal of 281481663259 is 952366184182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 281481663259 - 2²³ = 281473274651 is a prime.

It is not a weakly prime, because it can be changed into another prime (281481663269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140740831629 + 140740831630.

It is an arithmetic number, because the mean of its divisors is an integer number (140740831630).

Almost surely, 2^281481663259 is an apocalyptic number.

281481663259 is a deficient number, since it is larger than the sum of its proper divisors (1).

281481663259 is an equidigital number, since it uses as much as digits as its factorization.

281481663259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4976640, while the sum is 55.

The spelling of 281481663259 in words is "two hundred eighty-one billion, four hundred eighty-one million, six hundred sixty-three thousand, two hundred fifty-nine".