281955346056 has 24 divisors (see below), whose sum is σ = 763629062430. Its totient is φ = 93985115328.

The previous prime is 281955346039. The next prime is 281955346061. The reversal of 281955346056 is 650643559182.

281955346056 is a `hidden beast` number, since 2 + 81 + 9 + 5 + 53 + 460 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 269080812900 + 12874533156 = 518730^2 + 113466^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 281955345993 and 281955346011.

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, 1958023165 + ... + 1958023308.

Almost surely, 2^281955346056 is an apocalyptic number.

It is an amenable number.

281955346056 is an abundant number, since it is smaller than the sum of its proper divisors (481673716374).

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

281955346056 is a wasteful number, since it uses less digits than its factorization.

281955346056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916046485 (or 3916046478 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 281955346056 in words is "two hundred eighty-one billion, nine hundred fifty-five million, three hundred forty-six thousand, fifty-six".