281428945655 has 24 divisors (see below), whose sum is σ = 399761509056. Its totient is φ = 188931314880.

The previous prime is 281428945639. The next prime is 281428945661. The reversal of 281428945655 is 556549824182.

It is not a de Polignac number, because 281428945655 - 2⁴ = 281428945639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 281428945594 and 281428945603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17883359 + ... + 17899088.

It is an arithmetic number, because the mean of its divisors is an integer number (16656729544).

Almost surely, 2^281428945655 is an apocalyptic number.

281428945655 is a deficient number, since it is larger than the sum of its proper divisors (118332563401).

281428945655 is a wasteful number, since it uses less digits than its factorization.

281428945655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35782487 (or 35782476 counting only the distinct ones).

The product of its digits is 27648000, while the sum is 59.

The spelling of 281428945655 in words is "two hundred eighty-one billion, four hundred twenty-eight million, nine hundred forty-five thousand, six hundred fifty-five".