270281045861 has 2 divisors, whose sum is σ = 270281045862. Its totient is φ = 270281045860.

The previous prime is 270281045849. The next prime is 270281045863. The reversal of 270281045861 is 168540182072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270119272900 + 161772961 = 519730^2 + 12719^2 .

It is a cyclic number.

It is not a de Polignac number, because 270281045861 - 2¹⁴ = 270281029477 is a prime.

It is a Sophie Germain prime.

Together with 270281045863, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (270281045863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135140522930 + 135140522931.

It is an arithmetic number, because the mean of its divisors is an integer number (135140522931).

Almost surely, 2^270281045861 is an apocalyptic number.

It is an amenable number.

270281045861 is a deficient number, since it is larger than the sum of its proper divisors (1).

270281045861 is an equidigital number, since it uses as much as digits as its factorization.

270281045861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 270281045861 in words is "two hundred seventy billion, two hundred eighty-one million, forty-five thousand, eight hundred sixty-one".