281014468649 has 4 divisors (see below), whose sum is σ = 281468450640. Its totient is φ = 280560486660.

The previous prime is 281014468597. The next prime is 281014468663. The reversal of 281014468649 is 946864410182.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 281014468649 - 2³² = 276719501353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 281014468649.

It is not an unprimeable number, because it can be changed into a prime (281014468849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226990067 + ... + 226991304.

It is an arithmetic number, because the mean of its divisors is an integer number (70367112660).

Almost surely, 2^281014468649 is an apocalyptic number.

It is an amenable number.

281014468649 is a deficient number, since it is larger than the sum of its proper divisors (453981991).

281014468649 is an equidigital number, since it uses as much as digits as its factorization.

281014468649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453981990.

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 281014468649 in words is "two hundred eighty-one billion, fourteen million, four hundred sixty-eight thousand, six hundred forty-nine".