281955346057 has 16 divisors (see below), whose sum is σ = 352281526272. Its totient is φ = 219234975120.

The previous prime is 281955346039. The next prime is 281955346061. The reversal of 281955346057 is 750643559182.

It is not a de Polignac number, because 281955346057 - 2¹¹ = 281955344009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 281955345989 and 281955346007.

It is not an unprimeable number, because it can be changed into a prime (281955346457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3884553 + ... + 3956470.

It is an arithmetic number, because the mean of its divisors is an integer number (22017595392).

It is a 1-persistent number, because it is pandigital, but 2⋅281955346057 = 563910692114 is not.

Almost surely, 2^281955346057 is an apocalyptic number.

It is an amenable number.

281955346057 is a deficient number, since it is larger than the sum of its proper divisors (70326180215).

281955346057 is a wasteful number, since it uses less digits than its factorization.

281955346057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841508.

The product of its (nonzero) digits is 9072000, while the sum is 55.

The spelling of 281955346057 in words is "two hundred eighty-one billion, nine hundred fifty-five million, three hundred forty-six thousand, fifty-seven".