281345093856 has 36 divisors (see below), whose sum is σ = 800075111472. Its totient is φ = 93781697856.

The previous prime is 281345093849. The next prime is 281345093863. The reversal of 281345093856 is 658390543182.

281345093856 is a `hidden beast` number, since 2 + 81 + 3 + 4 + 509 + 3 + 8 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (281345093849) and next prime (281345093863).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 488446056 + ... + 488446631.

It is an arithmetic number, because the mean of its divisors is an integer number (22224308652).

Almost surely, 2^281345093856 is an apocalyptic number.

It is an amenable number.

281345093856 is an abundant number, since it is smaller than the sum of its proper divisors (518730017616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

281345093856 is a wasteful number, since it uses less digits than its factorization.

281345093856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976892703 (or 976892692 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 281345093856 in words is "two hundred eighty-one billion, three hundred forty-five million, ninety-three thousand, eight hundred fifty-six".