63281289055 has 16 divisors (see below), whose sum is σ = 80210110464. Its totient is φ = 47852612640.

The previous prime is 63281289053. The next prime is 63281289091. The reversal of 63281289055 is 55098218236.

It is a happy number.

It is not a de Polignac number, because 63281289055 - 2¹ = 63281289053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63281289053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4740619 + ... + 4753948.

It is an arithmetic number, because the mean of its divisors is an integer number (5013131904).

Almost surely, 2^63281289055 is an apocalyptic number.

63281289055 is a deficient number, since it is larger than the sum of its proper divisors (16928821409).

63281289055 is a wasteful number, since it uses less digits than its factorization.

63281289055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9494646.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 63281289055 in words is "sixty-three billion, two hundred eighty-one million, two hundred eighty-nine thousand, fifty-five".